138905480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{139}}^1$

素因数の和:283

約数の個数: 128

約数和(自身を含む): 372556800

約数和(自身を除く): 233651320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 56, 70, 83, 86, 139, 140, 166, 172, 215, 278, 280, 301, 332, 344, 415, 430, 556, 581, 602, 664, 695, 830, 860, 973, 1112, 1162, 1204, 1390, 1505, 1660, 1720, 1946, 2324, 2408, 2780, 2905, 3010, 3320, 3569, 3892, 4648, 4865, 5560, 5810, 5977, 6020, 7138, 7784, 9730, 11537, 11620, 11954, 12040, 14276, 17845, 19460, 23074, 23240, 23908, 24983, 28552, 29885, 35690, 38920, 41839, 46148, 47816, 49966, 57685, 59770, 71380, 80759, 83678, 92296, 99932, 115370, 119540, 124915, 142760, 161518, 167356, 199864, 209195, 230740, 239080, 249830, 323036, 334712, 403795, 418390, 461480, 496091, 499660, 646072, 807590, 836780, 992182, 999320, 1615180, 1673560, 1984364, 2480455, 3230360, 3472637, 3968728, 4960910, 6945274, 9921820, 13890548, 17363185, 19843640, 27781096, 34726370, 69452740, 138905480]

約数ペア:

[(1, 138905480), (2, 69452740), (4, 34726370), (5, 27781096), (7, 19843640), (8, 17363185), (10, 13890548), (14, 9921820), (20, 6945274), (28, 4960910), (35, 3968728), (40, 3472637), (43, 3230360), (56, 2480455), (70, 1984364), (83, 1673560), (86, 1615180), (139, 999320), (140, 992182), (166, 836780), (172, 807590), (215, 646072), (278, 499660), (280, 496091), (301, 461480), (332, 418390), (344, 403795), (415, 334712), (430, 323036), (556, 249830), (581, 239080), (602, 230740), (664, 209195), (695, 199864), (830, 167356), (860, 161518), (973, 142760), (1112, 124915), (1162, 119540), (1204, 115370), (1390, 99932), (1505, 92296), (1660, 83678), (1720, 80759), (1946, 71380), (2324, 59770), (2408, 57685), (2780, 49966), (2905, 47816), (3010, 46148), (3320, 41839), (3569, 38920), (3892, 35690), (4648, 29885), (4865, 28552), (5560, 24983), (5810, 23908), (5977, 23240), (6020, 23074), (7138, 19460), (7784, 17845), (9730, 14276), (11537, 12040), (11620, 11954)]