1394672720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{27983}}^1$

素因数の和:28092

約数の個数: 80

約数和(自身を含む): 3747617280

約数和(自身を除く): 2352944560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 89, 112, 140, 178, 280, 356, 445, 560, 623, 712, 890, 1246, 1424, 1780, 2492, 3115, 3560, 4984, 6230, 7120, 9968, 12460, 24920, 27983, 49840, 55966, 111932, 139915, 195881, 223864, 279830, 391762, 447728, 559660, 783524, 979405, 1119320, 1567048, 1958810, 2238640, 2490487, 3134096, 3917620, 4980974, 7835240, 9961948, 12452435, 15670480, 17433409, 19923896, 24904870, 34866818, 39847792, 49809740, 69733636, 87167045, 99619480, 139467272, 174334090, 199238960, 278934544, 348668180, 697336360, 1394672720]

約数ペア:

[(1, 1394672720), (2, 697336360), (4, 348668180), (5, 278934544), (7, 199238960), (8, 174334090), (10, 139467272), (14, 99619480), (16, 87167045), (20, 69733636), (28, 49809740), (35, 39847792), (40, 34866818), (56, 24904870), (70, 19923896), (80, 17433409), (89, 15670480), (112, 12452435), (140, 9961948), (178, 7835240), (280, 4980974), (356, 3917620), (445, 3134096), (560, 2490487), (623, 2238640), (712, 1958810), (890, 1567048), (1246, 1119320), (1424, 979405), (1780, 783524), (2492, 559660), (3115, 447728), (3560, 391762), (4984, 279830), (6230, 223864), (7120, 195881), (9968, 139915), (12460, 111932), (24920, 55966), (27983, 49840)]