20123013560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{31183}}^1$

素因数の和:31297

約数の個数: 128

約数和(自身を含む): 52336730880

約数和(自身を除く): 32213717320

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 73, 85, 104, 130, 136, 146, 170, 221, 260, 292, 340, 365, 442, 520, 584, 680, 730, 884, 949, 1105, 1241, 1460, 1768, 1898, 2210, 2482, 2920, 3796, 4420, 4745, 4964, 6205, 7592, 8840, 9490, 9928, 12410, 16133, 18980, 24820, 31183, 32266, 37960, 49640, 62366, 64532, 80665, 124732, 129064, 155915, 161330, 249464, 311830, 322660, 405379, 530111, 623660, 645320, 810758, 1060222, 1247320, 1621516, 2026895, 2120444, 2276359, 2650555, 3243032, 4053790, 4240888, 4552718, 5301110, 6891443, 8107580, 9105436, 10602220, 11381795, 13782886, 16215160, 18210872, 21204440, 22763590, 27565772, 29592667, 34457215, 38698103, 45527180, 55131544, 59185334, 68914430, 77396206, 91054360, 118370668, 137828860, 147963335, 154792412, 193490515, 236741336, 275657720, 295926670, 309584824, 386981030, 503075339, 591853340, 773962060, 1006150678, 1183706680, 1547924120, 2012301356, 2515376695, 4024602712, 5030753390, 10061506780, 20123013560]

約数ペア:

[(1, 20123013560), (2, 10061506780), (4, 5030753390), (5, 4024602712), (8, 2515376695), (10, 2012301356), (13, 1547924120), (17, 1183706680), (20, 1006150678), (26, 773962060), (34, 591853340), (40, 503075339), (52, 386981030), (65, 309584824), (68, 295926670), (73, 275657720), (85, 236741336), (104, 193490515), (130, 154792412), (136, 147963335), (146, 137828860), (170, 118370668), (221, 91054360), (260, 77396206), (292, 68914430), (340, 59185334), (365, 55131544), (442, 45527180), (520, 38698103), (584, 34457215), (680, 29592667), (730, 27565772), (884, 22763590), (949, 21204440), (1105, 18210872), (1241, 16215160), (1460, 13782886), (1768, 11381795), (1898, 10602220), (2210, 9105436), (2482, 8107580), (2920, 6891443), (3796, 5301110), (4420, 4552718), (4745, 4240888), (4964, 4053790), (6205, 3243032), (7592, 2650555), (8840, 2276359), (9490, 2120444), (9928, 2026895), (12410, 1621516), (16133, 1247320), (18980, 1060222), (24820, 810758), (31183, 645320), (32266, 623660), (37960, 530111), (49640, 405379), (62366, 322660), (64532, 311830), (80665, 249464), (124732, 161330), (129064, 155915)]