39790720

素因数分解:

$2^7\times 5^1\times {\mathrm{79}}^1\times {\mathrm{787}}^1$

素因数の和:885

約数の個数: 64

約数和(自身を含む): 96451200

約数和(自身を除く): 56660480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 128, 158, 160, 316, 320, 395, 632, 640, 787, 790, 1264, 1574, 1580, 2528, 3148, 3160, 3935, 5056, 6296, 6320, 7870, 10112, 12592, 12640, 15740, 25184, 25280, 31480, 50368, 50560, 62173, 62960, 100736, 124346, 125920, 248692, 251840, 310865, 497384, 503680, 621730, 994768, 1243460, 1989536, 2486920, 3979072, 4973840, 7958144, 9947680, 19895360, 39790720]

約数ペア:

[(1, 39790720), (2, 19895360), (4, 9947680), (5, 7958144), (8, 4973840), (10, 3979072), (16, 2486920), (20, 1989536), (32, 1243460), (40, 994768), (64, 621730), (79, 503680), (80, 497384), (128, 310865), (158, 251840), (160, 248692), (316, 125920), (320, 124346), (395, 100736), (632, 62960), (640, 62173), (787, 50560), (790, 50368), (1264, 31480), (1574, 25280), (1580, 25184), (2528, 15740), (3148, 12640), (3160, 12592), (3935, 10112), (5056, 7870), (6296, 6320)]