31978880

素因数分解:

$2^7\times 5^1\times {\mathrm{29}}^1\times {\mathrm{1723}}^1$

素因数の和:1771

約数の個数: 64

約数和(自身を含む): 79131600

約数和(自身を除く): 47152720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 64, 80, 116, 128, 145, 160, 232, 290, 320, 464, 580, 640, 928, 1160, 1723, 1856, 2320, 3446, 3712, 4640, 6892, 8615, 9280, 13784, 17230, 18560, 27568, 34460, 49967, 55136, 68920, 99934, 110272, 137840, 199868, 220544, 249835, 275680, 399736, 499670, 551360, 799472, 999340, 1102720, 1598944, 1998680, 3197888, 3997360, 6395776, 7994720, 15989440, 31978880]

約数ペア:

[(1, 31978880), (2, 15989440), (4, 7994720), (5, 6395776), (8, 3997360), (10, 3197888), (16, 1998680), (20, 1598944), (29, 1102720), (32, 999340), (40, 799472), (58, 551360), (64, 499670), (80, 399736), (116, 275680), (128, 249835), (145, 220544), (160, 199868), (232, 137840), (290, 110272), (320, 99934), (464, 68920), (580, 55136), (640, 49967), (928, 34460), (1160, 27568), (1723, 18560), (1856, 17230), (2320, 13784), (3446, 9280), (3712, 8615), (4640, 6892)]