138578640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{7309}}^1$

素因数の和:7404

約数の個数: 80

約数和(自身を含む): 435091200

約数和(自身を除く): 296512560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 79, 80, 120, 158, 237, 240, 316, 395, 474, 632, 790, 948, 1185, 1264, 1580, 1896, 2370, 3160, 3792, 4740, 6320, 7309, 9480, 14618, 18960, 21927, 29236, 36545, 43854, 58472, 73090, 87708, 109635, 116944, 146180, 175416, 219270, 292360, 350832, 438540, 577411, 584720, 877080, 1154822, 1732233, 1754160, 2309644, 2887055, 3464466, 4619288, 5774110, 6928932, 8661165, 9238576, 11548220, 13857864, 17322330, 23096440, 27715728, 34644660, 46192880, 69289320, 138578640]

約数ペア:

[(1, 138578640), (2, 69289320), (3, 46192880), (4, 34644660), (5, 27715728), (6, 23096440), (8, 17322330), (10, 13857864), (12, 11548220), (15, 9238576), (16, 8661165), (20, 6928932), (24, 5774110), (30, 4619288), (40, 3464466), (48, 2887055), (60, 2309644), (79, 1754160), (80, 1732233), (120, 1154822), (158, 877080), (237, 584720), (240, 577411), (316, 438540), (395, 350832), (474, 292360), (632, 219270), (790, 175416), (948, 146180), (1185, 116944), (1264, 109635), (1580, 87708), (1896, 73090), (2370, 58472), (3160, 43854), (3792, 36545), (4740, 29236), (6320, 21927), (7309, 18960), (9480, 14618)]