280126140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{151}}^1\times {\mathrm{631}}^1$

素因数の和:808

約数の個数: 144

約数和(自身を含む): 919908864

約数和(自身を除く): 639782724

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 151, 196, 210, 245, 294, 302, 420, 453, 490, 588, 604, 631, 735, 755, 906, 980, 1057, 1262, 1470, 1510, 1812, 1893, 2114, 2265, 2524, 2940, 3020, 3155, 3171, 3786, 4228, 4417, 4530, 5285, 6310, 6342, 7399, 7572, 8834, 9060, 9465, 10570, 12620, 12684, 13251, 14798, 15855, 17668, 18930, 21140, 22085, 22197, 26502, 29596, 30919, 31710, 36995, 37860, 44170, 44394, 53004, 61838, 63420, 66255, 73990, 88340, 88788, 92757, 95281, 110985, 123676, 132510, 147980, 154595, 185514, 190562, 221970, 265020, 285843, 309190, 371028, 381124, 443940, 463785, 476405, 571686, 618380, 666967, 927570, 952810, 1143372, 1333934, 1429215, 1855140, 1905620, 2000901, 2667868, 2858430, 3334835, 4001802, 4668769, 5716860, 6669670, 8003604, 9337538, 10004505, 13339340, 14006307, 18675076, 20009010, 23343845, 28012614, 40018020, 46687690, 56025228, 70031535, 93375380, 140063070, 280126140]

約数ペア:

[(1, 280126140), (2, 140063070), (3, 93375380), (4, 70031535), (5, 56025228), (6, 46687690), (7, 40018020), (10, 28012614), (12, 23343845), (14, 20009010), (15, 18675076), (20, 14006307), (21, 13339340), (28, 10004505), (30, 9337538), (35, 8003604), (42, 6669670), (49, 5716860), (60, 4668769), (70, 4001802), (84, 3334835), (98, 2858430), (105, 2667868), (140, 2000901), (147, 1905620), (151, 1855140), (196, 1429215), (210, 1333934), (245, 1143372), (294, 952810), (302, 927570), (420, 666967), (453, 618380), (490, 571686), (588, 476405), (604, 463785), (631, 443940), (735, 381124), (755, 371028), (906, 309190), (980, 285843), (1057, 265020), (1262, 221970), (1470, 190562), (1510, 185514), (1812, 154595), (1893, 147980), (2114, 132510), (2265, 123676), (2524, 110985), (2940, 95281), (3020, 92757), (3155, 88788), (3171, 88340), (3786, 73990), (4228, 66255), (4417, 63420), (4530, 61838), (5285, 53004), (6310, 44394), (6342, 44170), (7399, 37860), (7572, 36995), (8834, 31710), (9060, 30919), (9465, 29596), (10570, 26502), (12620, 22197), (12684, 22085), (13251, 21140), (14798, 18930), (15855, 17668)]