19953450

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1$

素因数の和:197

約数の個数: 144

約数和(自身を含む): 60933600

約数和(自身を除く): 40980150

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 25, 29, 30, 33, 45, 50, 55, 58, 66, 75, 87, 90, 99, 110, 139, 145, 150, 165, 174, 198, 225, 261, 275, 278, 290, 319, 330, 417, 435, 450, 495, 522, 550, 638, 695, 725, 825, 834, 870, 957, 990, 1251, 1305, 1390, 1450, 1529, 1595, 1650, 1914, 2085, 2175, 2475, 2502, 2610, 2871, 3058, 3190, 3475, 4031, 4170, 4350, 4587, 4785, 4950, 5742, 6255, 6525, 6950, 7645, 7975, 8062, 9174, 9570, 10425, 12093, 12510, 13050, 13761, 14355, 15290, 15950, 20155, 20850, 22935, 23925, 24186, 27522, 28710, 31275, 36279, 38225, 40310, 44341, 45870, 47850, 60465, 62550, 68805, 71775, 72558, 76450, 88682, 100775, 114675, 120930, 133023, 137610, 143550, 181395, 201550, 221705, 229350, 266046, 302325, 344025, 362790, 399069, 443410, 604650, 665115, 688050, 798138, 906975, 1108525, 1330230, 1813950, 1995345, 2217050, 3325575, 3990690, 6651150, 9976725, 19953450]

約数ペア:

[(1, 19953450), (2, 9976725), (3, 6651150), (5, 3990690), (6, 3325575), (9, 2217050), (10, 1995345), (11, 1813950), (15, 1330230), (18, 1108525), (22, 906975), (25, 798138), (29, 688050), (30, 665115), (33, 604650), (45, 443410), (50, 399069), (55, 362790), (58, 344025), (66, 302325), (75, 266046), (87, 229350), (90, 221705), (99, 201550), (110, 181395), (139, 143550), (145, 137610), (150, 133023), (165, 120930), (174, 114675), (198, 100775), (225, 88682), (261, 76450), (275, 72558), (278, 71775), (290, 68805), (319, 62550), (330, 60465), (417, 47850), (435, 45870), (450, 44341), (495, 40310), (522, 38225), (550, 36279), (638, 31275), (695, 28710), (725, 27522), (825, 24186), (834, 23925), (870, 22935), (957, 20850), (990, 20155), (1251, 15950), (1305, 15290), (1390, 14355), (1450, 13761), (1529, 13050), (1595, 12510), (1650, 12093), (1914, 10425), (2085, 9570), (2175, 9174), (2475, 8062), (2502, 7975), (2610, 7645), (2871, 6950), (3058, 6525), (3190, 6255), (3475, 5742), (4031, 4950), (4170, 4785), (4350, 4587)]