19561560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{223}}^1$

素因数の和:297

約数の個数: 128

約数和(自身を含む): 63866880

約数和(自身を除く): 44305320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 43, 51, 60, 68, 85, 86, 102, 120, 129, 136, 170, 172, 204, 215, 223, 255, 258, 340, 344, 408, 430, 446, 510, 516, 645, 669, 680, 731, 860, 892, 1020, 1032, 1115, 1290, 1338, 1462, 1720, 1784, 2040, 2193, 2230, 2580, 2676, 2924, 3345, 3655, 3791, 4386, 4460, 5160, 5352, 5848, 6690, 7310, 7582, 8772, 8920, 9589, 10965, 11373, 13380, 14620, 15164, 17544, 18955, 19178, 21930, 22746, 26760, 28767, 29240, 30328, 37910, 38356, 43860, 45492, 47945, 56865, 57534, 75820, 76712, 87720, 90984, 95890, 113730, 115068, 143835, 151640, 163013, 191780, 227460, 230136, 287670, 326026, 383560, 454920, 489039, 575340, 652052, 815065, 978078, 1150680, 1304104, 1630130, 1956156, 2445195, 3260260, 3912312, 4890390, 6520520, 9780780, 19561560]

約数ペア:

[(1, 19561560), (2, 9780780), (3, 6520520), (4, 4890390), (5, 3912312), (6, 3260260), (8, 2445195), (10, 1956156), (12, 1630130), (15, 1304104), (17, 1150680), (20, 978078), (24, 815065), (30, 652052), (34, 575340), (40, 489039), (43, 454920), (51, 383560), (60, 326026), (68, 287670), (85, 230136), (86, 227460), (102, 191780), (120, 163013), (129, 151640), (136, 143835), (170, 115068), (172, 113730), (204, 95890), (215, 90984), (223, 87720), (255, 76712), (258, 75820), (340, 57534), (344, 56865), (408, 47945), (430, 45492), (446, 43860), (510, 38356), (516, 37910), (645, 30328), (669, 29240), (680, 28767), (731, 26760), (860, 22746), (892, 21930), (1020, 19178), (1032, 18955), (1115, 17544), (1290, 15164), (1338, 14620), (1462, 13380), (1720, 11373), (1784, 10965), (2040, 9589), (2193, 8920), (2230, 8772), (2580, 7582), (2676, 7310), (2924, 6690), (3345, 5848), (3655, 5352), (3791, 5160), (4386, 4460)]