1280947500

素因数分解:

$2^2\times 3^3\times 5^4\times 7^1\times {\mathrm{2711}}^1$

素因数の和:2751

約数の個数: 240

約数和(自身を含む): 4744481280

約数和(自身を除く): 3463533780

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 25, 27, 28, 30, 35, 36, 42, 45, 50, 54, 60, 63, 70, 75, 84, 90, 100, 105, 108, 125, 126, 135, 140, 150, 175, 180, 189, 210, 225, 250, 252, 270, 300, 315, 350, 375, 378, 420, 450, 500, 525, 540, 625, 630, 675, 700, 750, 756, 875, 900, 945, 1050, 1125, 1250, 1260, 1350, 1500, 1575, 1750, 1875, 1890, 2100, 2250, 2500, 2625, 2700, 2711, 3150, 3375, 3500, 3750, 3780, 4375, 4500, 4725, 5250, 5422, 5625, 6300, 6750, 7500, 7875, 8133, 8750, 9450, 10500, 10844, 11250, 13125, 13500, 13555, 15750, 16266, 16875, 17500, 18900, 18977, 22500, 23625, 24399, 26250, 27110, 31500, 32532, 33750, 37954, 39375, 40665, 47250, 48798, 52500, 54220, 56931, 67500, 67775, 73197, 75908, 78750, 81330, 94500, 94885, 97596, 113862, 118125, 121995, 135550, 146394, 157500, 162660, 170793, 189770, 203325, 227724, 236250, 243990, 271100, 284655, 292788, 338875, 341586, 365985, 379540, 406650, 472500, 474425, 487980, 512379, 569310, 609975, 677750, 683172, 731970, 813300, 853965, 948850, 1016625, 1024758, 1138620, 1219950, 1355500, 1423275, 1463940, 1694375, 1707930, 1829925, 1897700, 2033250, 2049516, 2372125, 2439900, 2561895, 2846550, 3049875, 3388750, 3415860, 3659850, 4066500, 4269825, 4744250, 5083125, 5123790, 5693100, 6099750, 6777500, 7116375, 7319700, 8539650, 9149625, 9488500, 10166250, 10247580, 11860625, 12199500, 12809475, 14232750, 15249375, 17079300, 18299250, 20332500, 21349125, 23721250, 25618950, 28465500, 30498750, 35581875, 36598500, 42698250, 45748125, 47442500, 51237900, 60997500, 64047375, 71163750, 85396500, 91496250, 106745625, 128094750, 142327500, 182992500, 213491250, 256189500, 320236875, 426982500, 640473750, 1280947500]

約数ペア:

[(1, 1280947500), (2, 640473750), (3, 426982500), (4, 320236875), (5, 256189500), (6, 213491250), (7, 182992500), (9, 142327500), (10, 128094750), (12, 106745625), (14, 91496250), (15, 85396500), (18, 71163750), (20, 64047375), (21, 60997500), (25, 51237900), (27, 47442500), (28, 45748125), (30, 42698250), (35, 36598500), (36, 35581875), (42, 30498750), (45, 28465500), (50, 25618950), (54, 23721250), (60, 21349125), (63, 20332500), (70, 18299250), (75, 17079300), (84, 15249375), (90, 14232750), (100, 12809475), (105, 12199500), (108, 11860625), (125, 10247580), (126, 10166250), (135, 9488500), (140, 9149625), (150, 8539650), (175, 7319700), (180, 7116375), (189, 6777500), (210, 6099750), (225, 5693100), (250, 5123790), (252, 5083125), (270, 4744250), (300, 4269825), (315, 4066500), (350, 3659850), (375, 3415860), (378, 3388750), (420, 3049875), (450, 2846550), (500, 2561895), (525, 2439900), (540, 2372125), (625, 2049516), (630, 2033250), (675, 1897700), (700, 1829925), (750, 1707930), (756, 1694375), (875, 1463940), (900, 1423275), (945, 1355500), (1050, 1219950), (1125, 1138620), (1250, 1024758), (1260, 1016625), (1350, 948850), (1500, 853965), (1575, 813300), (1750, 731970), (1875, 683172), (1890, 677750), (2100, 609975), (2250, 569310), (2500, 512379), (2625, 487980), (2700, 474425), (2711, 472500), (3150, 406650), (3375, 379540), (3500, 365985), (3750, 341586), (3780, 338875), (4375, 292788), (4500, 284655), (4725, 271100), (5250, 243990), (5422, 236250), (5625, 227724), (6300, 203325), (6750, 189770), (7500, 170793), (7875, 162660), (8133, 157500), (8750, 146394), (9450, 135550), (10500, 121995), (10844, 118125), (11250, 113862), (13125, 97596), (13500, 94885), (13555, 94500), (15750, 81330), (16266, 78750), (16875, 75908), (17500, 73197), (18900, 67775), (18977, 67500), (22500, 56931), (23625, 54220), (24399, 52500), (26250, 48798), (27110, 47250), (31500, 40665), (32532, 39375), (33750, 37954)]