20891040

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{613}}^1$

素因数の和:702

約数の個数: 96

約数和(自身を含む): 66842496

約数和(自身を除く): 45951456

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 71, 80, 96, 120, 142, 160, 213, 240, 284, 355, 426, 480, 568, 613, 710, 852, 1065, 1136, 1226, 1420, 1704, 1839, 2130, 2272, 2452, 2840, 3065, 3408, 3678, 4260, 4904, 5680, 6130, 6816, 7356, 8520, 9195, 9808, 11360, 12260, 14712, 17040, 18390, 19616, 24520, 29424, 34080, 36780, 43523, 49040, 58848, 73560, 87046, 98080, 130569, 147120, 174092, 217615, 261138, 294240, 348184, 435230, 522276, 652845, 696368, 870460, 1044552, 1305690, 1392736, 1740920, 2089104, 2611380, 3481840, 4178208, 5222760, 6963680, 10445520, 20891040]

約数ペア:

[(1, 20891040), (2, 10445520), (3, 6963680), (4, 5222760), (5, 4178208), (6, 3481840), (8, 2611380), (10, 2089104), (12, 1740920), (15, 1392736), (16, 1305690), (20, 1044552), (24, 870460), (30, 696368), (32, 652845), (40, 522276), (48, 435230), (60, 348184), (71, 294240), (80, 261138), (96, 217615), (120, 174092), (142, 147120), (160, 130569), (213, 98080), (240, 87046), (284, 73560), (355, 58848), (426, 49040), (480, 43523), (568, 36780), (613, 34080), (710, 29424), (852, 24520), (1065, 19616), (1136, 18390), (1226, 17040), (1420, 14712), (1704, 12260), (1839, 11360), (2130, 9808), (2272, 9195), (2452, 8520), (2840, 7356), (3065, 6816), (3408, 6130), (3678, 5680), (4260, 4904)]