15907780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^2\times {\mathrm{83}}^1$

素因数の和:173

約数の個数: 72

約数和(自身を含む): 39711168

約数和(自身を除く): 23803388

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 70, 74, 83, 140, 148, 166, 185, 259, 332, 370, 415, 518, 581, 740, 830, 1036, 1162, 1295, 1369, 1660, 2324, 2590, 2738, 2905, 3071, 5180, 5476, 5810, 6142, 6845, 9583, 11620, 12284, 13690, 15355, 19166, 21497, 27380, 30710, 38332, 42994, 47915, 61420, 85988, 95830, 107485, 113627, 191660, 214970, 227254, 429940, 454508, 568135, 795389, 1136270, 1590778, 2272540, 3181556, 3976945, 7953890, 15907780]

約数ペア:

[(1, 15907780), (2, 7953890), (4, 3976945), (5, 3181556), (7, 2272540), (10, 1590778), (14, 1136270), (20, 795389), (28, 568135), (35, 454508), (37, 429940), (70, 227254), (74, 214970), (83, 191660), (140, 113627), (148, 107485), (166, 95830), (185, 85988), (259, 61420), (332, 47915), (370, 42994), (415, 38332), (518, 30710), (581, 27380), (740, 21497), (830, 19166), (1036, 15355), (1162, 13690), (1295, 12284), (1369, 11620), (1660, 9583), (2324, 6845), (2590, 6142), (2738, 5810), (2905, 5476), (3071, 5180)]