201521920

素因数分解:

$2^8\times 5^1\times {\mathrm{313}}^1\times {\mathrm{503}}^1$

素因数の和:837

約数の個数: 72

約数和(自身を含む): 485212896

約数和(自身を除く): 283690976

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 313, 320, 503, 626, 640, 1006, 1252, 1280, 1565, 2012, 2504, 2515, 3130, 4024, 5008, 5030, 6260, 8048, 10016, 10060, 12520, 16096, 20032, 20120, 25040, 32192, 40064, 40240, 50080, 64384, 80128, 80480, 100160, 128768, 157439, 160960, 200320, 314878, 321920, 400640, 629756, 643840, 787195, 1259512, 1574390, 2519024, 3148780, 5038048, 6297560, 10076096, 12595120, 20152192, 25190240, 40304384, 50380480, 100760960, 201521920]

約数ペア:

[(1, 201521920), (2, 100760960), (4, 50380480), (5, 40304384), (8, 25190240), (10, 20152192), (16, 12595120), (20, 10076096), (32, 6297560), (40, 5038048), (64, 3148780), (80, 2519024), (128, 1574390), (160, 1259512), (256, 787195), (313, 643840), (320, 629756), (503, 400640), (626, 321920), (640, 314878), (1006, 200320), (1252, 160960), (1280, 157439), (1565, 128768), (2012, 100160), (2504, 80480), (2515, 80128), (3130, 64384), (4024, 50080), (5008, 40240), (5030, 40064), (6260, 32192), (8048, 25040), (10016, 20120), (10060, 20032), (12520, 16096)]