251618320

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{1429}}^1$

素因数の和:1544

約数の個数: 80

約数和(自身を含む): 612817920

約数和(自身を除く): 361199600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 71, 80, 124, 142, 155, 248, 284, 310, 355, 496, 568, 620, 710, 1136, 1240, 1420, 1429, 2201, 2480, 2840, 2858, 4402, 5680, 5716, 7145, 8804, 11005, 11432, 14290, 17608, 22010, 22864, 28580, 35216, 44020, 44299, 57160, 88040, 88598, 101459, 114320, 176080, 177196, 202918, 221495, 354392, 405836, 442990, 507295, 708784, 811672, 885980, 1014590, 1623344, 1771960, 2029180, 3145229, 3543920, 4058360, 6290458, 8116720, 12580916, 15726145, 25161832, 31452290, 50323664, 62904580, 125809160, 251618320]

約数ペア:

[(1, 251618320), (2, 125809160), (4, 62904580), (5, 50323664), (8, 31452290), (10, 25161832), (16, 15726145), (20, 12580916), (31, 8116720), (40, 6290458), (62, 4058360), (71, 3543920), (80, 3145229), (124, 2029180), (142, 1771960), (155, 1623344), (248, 1014590), (284, 885980), (310, 811672), (355, 708784), (496, 507295), (568, 442990), (620, 405836), (710, 354392), (1136, 221495), (1240, 202918), (1420, 177196), (1429, 176080), (2201, 114320), (2480, 101459), (2840, 88598), (2858, 88040), (4402, 57160), (5680, 44299), (5716, 44020), (7145, 35216), (8804, 28580), (11005, 22864), (11432, 22010), (14290, 17608)]