20702640

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{12323}}^1$

素因数の和:12346

約数の個数: 80

約数和(自身を含む): 73352448

約数和(自身を除く): 52649808

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 12323, 24646, 36969, 49292, 61615, 73938, 86261, 98584, 123230, 147876, 172522, 184845, 197168, 246460, 258783, 295752, 345044, 369690, 431305, 492920, 517566, 591504, 690088, 739380, 862610, 985840, 1035132, 1293915, 1380176, 1478760, 1725220, 2070264, 2587830, 2957520, 3450440, 4140528, 5175660, 6900880, 10351320, 20702640]

約数ペア:

[(1, 20702640), (2, 10351320), (3, 6900880), (4, 5175660), (5, 4140528), (6, 3450440), (7, 2957520), (8, 2587830), (10, 2070264), (12, 1725220), (14, 1478760), (15, 1380176), (16, 1293915), (20, 1035132), (21, 985840), (24, 862610), (28, 739380), (30, 690088), (35, 591504), (40, 517566), (42, 492920), (48, 431305), (56, 369690), (60, 345044), (70, 295752), (80, 258783), (84, 246460), (105, 197168), (112, 184845), (120, 172522), (140, 147876), (168, 123230), (210, 98584), (240, 86261), (280, 73938), (336, 61615), (420, 49292), (560, 36969), (840, 24646), (1680, 12323)]