31312640

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1439}}^1$

素因数の和:1477

約数の個数: 72

約数和(自身を含む): 79470720

約数和(自身を除く): 48158080

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 256, 272, 320, 340, 544, 640, 680, 1088, 1280, 1360, 1439, 2176, 2720, 2878, 4352, 5440, 5756, 7195, 10880, 11512, 14390, 21760, 23024, 24463, 28780, 46048, 48926, 57560, 92096, 97852, 115120, 122315, 184192, 195704, 230240, 244630, 368384, 391408, 460480, 489260, 782816, 920960, 978520, 1565632, 1841920, 1957040, 3131264, 3914080, 6262528, 7828160, 15656320, 31312640]

約数ペア:

[(1, 31312640), (2, 15656320), (4, 7828160), (5, 6262528), (8, 3914080), (10, 3131264), (16, 1957040), (17, 1841920), (20, 1565632), (32, 978520), (34, 920960), (40, 782816), (64, 489260), (68, 460480), (80, 391408), (85, 368384), (128, 244630), (136, 230240), (160, 195704), (170, 184192), (256, 122315), (272, 115120), (320, 97852), (340, 92096), (544, 57560), (640, 48926), (680, 46048), (1088, 28780), (1280, 24463), (1360, 23024), (1439, 21760), (2176, 14390), (2720, 11512), (2878, 10880), (4352, 7195), (5440, 5756)]