81888240

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{617}}^1$

素因数の和:719

約数の個数: 160

約数和(自身を含む): 294266880

約数和(自身を除く): 212378640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 79, 80, 84, 105, 112, 120, 140, 158, 168, 210, 237, 240, 280, 316, 336, 395, 420, 474, 553, 560, 617, 632, 790, 840, 948, 1106, 1185, 1234, 1264, 1580, 1659, 1680, 1851, 1896, 2212, 2370, 2468, 2765, 3085, 3160, 3318, 3702, 3792, 4319, 4424, 4740, 4936, 5530, 6170, 6320, 6636, 7404, 8295, 8638, 8848, 9255, 9480, 9872, 11060, 12340, 12957, 13272, 14808, 16590, 17276, 18510, 18960, 21595, 22120, 24680, 25914, 26544, 29616, 33180, 34552, 37020, 43190, 44240, 48743, 49360, 51828, 64785, 66360, 69104, 74040, 86380, 97486, 103656, 129570, 132720, 146229, 148080, 172760, 194972, 207312, 243715, 259140, 292458, 341201, 345520, 389944, 487430, 518280, 584916, 682402, 731145, 779888, 974860, 1023603, 1036560, 1169832, 1364804, 1462290, 1706005, 1949720, 2047206, 2339664, 2729608, 2924580, 3412010, 3899440, 4094412, 5118015, 5459216, 5849160, 6824020, 8188824, 10236030, 11698320, 13648040, 16377648, 20472060, 27296080, 40944120, 81888240]

約数ペア:

[(1, 81888240), (2, 40944120), (3, 27296080), (4, 20472060), (5, 16377648), (6, 13648040), (7, 11698320), (8, 10236030), (10, 8188824), (12, 6824020), (14, 5849160), (15, 5459216), (16, 5118015), (20, 4094412), (21, 3899440), (24, 3412010), (28, 2924580), (30, 2729608), (35, 2339664), (40, 2047206), (42, 1949720), (48, 1706005), (56, 1462290), (60, 1364804), (70, 1169832), (79, 1036560), (80, 1023603), (84, 974860), (105, 779888), (112, 731145), (120, 682402), (140, 584916), (158, 518280), (168, 487430), (210, 389944), (237, 345520), (240, 341201), (280, 292458), (316, 259140), (336, 243715), (395, 207312), (420, 194972), (474, 172760), (553, 148080), (560, 146229), (617, 132720), (632, 129570), (790, 103656), (840, 97486), (948, 86380), (1106, 74040), (1185, 69104), (1234, 66360), (1264, 64785), (1580, 51828), (1659, 49360), (1680, 48743), (1851, 44240), (1896, 43190), (2212, 37020), (2370, 34552), (2468, 33180), (2765, 29616), (3085, 26544), (3160, 25914), (3318, 24680), (3702, 22120), (3792, 21595), (4319, 18960), (4424, 18510), (4740, 17276), (4936, 16590), (5530, 14808), (6170, 13272), (6320, 12957), (6636, 12340), (7404, 11060), (8295, 9872), (8638, 9480), (8848, 9255)]