1780450100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{6553}}^1$

素因数の和:6610

約数の個数: 144

約数和(自身を含む): 4778652480

約数和(自身を除く): 2998202380

約数列:

[1, 2, 4, 5, 10, 11, 13, 19, 20, 22, 25, 26, 38, 44, 50, 52, 55, 65, 76, 95, 100, 110, 130, 143, 190, 209, 220, 247, 260, 275, 286, 325, 380, 418, 475, 494, 550, 572, 650, 715, 836, 950, 988, 1045, 1100, 1235, 1300, 1430, 1900, 2090, 2470, 2717, 2860, 3575, 4180, 4940, 5225, 5434, 6175, 6553, 7150, 10450, 10868, 12350, 13106, 13585, 14300, 20900, 24700, 26212, 27170, 32765, 54340, 65530, 67925, 72083, 85189, 124507, 131060, 135850, 144166, 163825, 170378, 249014, 271700, 288332, 327650, 340756, 360415, 425945, 498028, 622535, 655300, 720830, 851890, 937079, 1245070, 1369577, 1441660, 1618591, 1703780, 1802075, 1874158, 2129725, 2490140, 2739154, 3112675, 3237182, 3604150, 3748316, 4259450, 4685395, 5478308, 6225350, 6474364, 6847885, 7208300, 8092955, 8518900, 9370790, 12450700, 13695770, 16185910, 17804501, 18741580, 23426975, 27391540, 32371820, 34239425, 35609002, 40464775, 46853950, 68478850, 71218004, 80929550, 89022505, 93707900, 136957700, 161859100, 178045010, 356090020, 445112525, 890225050, 1780450100]

約数ペア:

[(1, 1780450100), (2, 890225050), (4, 445112525), (5, 356090020), (10, 178045010), (11, 161859100), (13, 136957700), (19, 93707900), (20, 89022505), (22, 80929550), (25, 71218004), (26, 68478850), (38, 46853950), (44, 40464775), (50, 35609002), (52, 34239425), (55, 32371820), (65, 27391540), (76, 23426975), (95, 18741580), (100, 17804501), (110, 16185910), (130, 13695770), (143, 12450700), (190, 9370790), (209, 8518900), (220, 8092955), (247, 7208300), (260, 6847885), (275, 6474364), (286, 6225350), (325, 5478308), (380, 4685395), (418, 4259450), (475, 3748316), (494, 3604150), (550, 3237182), (572, 3112675), (650, 2739154), (715, 2490140), (836, 2129725), (950, 1874158), (988, 1802075), (1045, 1703780), (1100, 1618591), (1235, 1441660), (1300, 1369577), (1430, 1245070), (1900, 937079), (2090, 851890), (2470, 720830), (2717, 655300), (2860, 622535), (3575, 498028), (4180, 425945), (4940, 360415), (5225, 340756), (5434, 327650), (6175, 288332), (6553, 271700), (7150, 249014), (10450, 170378), (10868, 163825), (12350, 144166), (13106, 135850), (13585, 131060), (14300, 124507), (20900, 85189), (24700, 72083), (26212, 67925), (27170, 65530), (32765, 54340)]