2012688640

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{50723}}^1$

素因数の和:50775

約数の個数: 72

約数和(自身を含む): 4976633088

約数和(自身を除く): 2963944448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 992, 1240, 1280, 1984, 2480, 3968, 4960, 7936, 9920, 19840, 39680, 50723, 101446, 202892, 253615, 405784, 507230, 811568, 1014460, 1572413, 1623136, 2028920, 3144826, 3246272, 4057840, 6289652, 6492544, 7862065, 8115680, 12579304, 12985088, 15724130, 16231360, 25158608, 31448260, 32462720, 50317216, 62896520, 64925440, 100634432, 125793040, 201268864, 251586080, 402537728, 503172160, 1006344320, 2012688640]

約数ペア:

[(1, 2012688640), (2, 1006344320), (4, 503172160), (5, 402537728), (8, 251586080), (10, 201268864), (16, 125793040), (20, 100634432), (31, 64925440), (32, 62896520), (40, 50317216), (62, 32462720), (64, 31448260), (80, 25158608), (124, 16231360), (128, 15724130), (155, 12985088), (160, 12579304), (248, 8115680), (256, 7862065), (310, 6492544), (320, 6289652), (496, 4057840), (620, 3246272), (640, 3144826), (992, 2028920), (1240, 1623136), (1280, 1572413), (1984, 1014460), (2480, 811568), (3968, 507230), (4960, 405784), (7936, 253615), (9920, 202892), (19840, 101446), (39680, 50723)]