199620160

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{20123}}^1$

素因数の和:20171

約数の個数: 56

約数和(自身を含む): 490703616

約数和(自身を除く): 291083456

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1984, 2480, 4960, 9920, 20123, 40246, 80492, 100615, 160984, 201230, 321968, 402460, 623813, 643936, 804920, 1247626, 1287872, 1609840, 2495252, 3119065, 3219680, 4990504, 6238130, 6439360, 9981008, 12476260, 19962016, 24952520, 39924032, 49905040, 99810080, 199620160]

約数ペア:

[(1, 199620160), (2, 99810080), (4, 49905040), (5, 39924032), (8, 24952520), (10, 19962016), (16, 12476260), (20, 9981008), (31, 6439360), (32, 6238130), (40, 4990504), (62, 3219680), (64, 3119065), (80, 2495252), (124, 1609840), (155, 1287872), (160, 1247626), (248, 804920), (310, 643936), (320, 623813), (496, 402460), (620, 321968), (992, 201230), (1240, 160984), (1984, 100615), (2480, 80492), (4960, 40246), (9920, 20123)]