890234920

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{18439}}^1$

素因数の和:18538

約数の個数: 64

約数和(自身を含む): 2150841600

約数和(自身を除く): 1260606680

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 71, 85, 136, 142, 170, 284, 340, 355, 568, 680, 710, 1207, 1420, 2414, 2840, 4828, 6035, 9656, 12070, 18439, 24140, 36878, 48280, 73756, 92195, 147512, 184390, 313463, 368780, 626926, 737560, 1253852, 1309169, 1567315, 2507704, 2618338, 3134630, 5236676, 6269260, 6545845, 10473352, 12538520, 13091690, 22255873, 26183380, 44511746, 52366760, 89023492, 111279365, 178046984, 222558730, 445117460, 890234920]

約数ペア:

[(1, 890234920), (2, 445117460), (4, 222558730), (5, 178046984), (8, 111279365), (10, 89023492), (17, 52366760), (20, 44511746), (34, 26183380), (40, 22255873), (68, 13091690), (71, 12538520), (85, 10473352), (136, 6545845), (142, 6269260), (170, 5236676), (284, 3134630), (340, 2618338), (355, 2507704), (568, 1567315), (680, 1309169), (710, 1253852), (1207, 737560), (1420, 626926), (2414, 368780), (2840, 313463), (4828, 184390), (6035, 147512), (9656, 92195), (12070, 73756), (18439, 48280), (24140, 36878)]