402945440

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{81239}}^1$

素因数の和:81285

約数の個数: 48

約数和(自身を含む): 982679040

約数和(自身を除く): 579733600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 992, 1240, 2480, 4960, 81239, 162478, 324956, 406195, 649912, 812390, 1299824, 1624780, 2518409, 2599648, 3249560, 5036818, 6499120, 10073636, 12592045, 12998240, 20147272, 25184090, 40294544, 50368180, 80589088, 100736360, 201472720, 402945440]

約数ペア:

[(1, 402945440), (2, 201472720), (4, 100736360), (5, 80589088), (8, 50368180), (10, 40294544), (16, 25184090), (20, 20147272), (31, 12998240), (32, 12592045), (40, 10073636), (62, 6499120), (80, 5036818), (124, 3249560), (155, 2599648), (160, 2518409), (248, 1624780), (310, 1299824), (496, 812390), (620, 649912), (992, 406195), (1240, 324956), (2480, 162478), (4960, 81239)]