31809040

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1231}}^1$

素因数の和:1280

約数の個数: 80

約数和(自身を含む): 82494720

約数和(自身を除く): 50685680

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 34, 38, 40, 68, 76, 80, 85, 95, 136, 152, 170, 190, 272, 304, 323, 340, 380, 646, 680, 760, 1231, 1292, 1360, 1520, 1615, 2462, 2584, 3230, 4924, 5168, 6155, 6460, 9848, 12310, 12920, 19696, 20927, 23389, 24620, 25840, 41854, 46778, 49240, 83708, 93556, 98480, 104635, 116945, 167416, 187112, 209270, 233890, 334832, 374224, 397613, 418540, 467780, 795226, 837080, 935560, 1590452, 1674160, 1871120, 1988065, 3180904, 3976130, 6361808, 7952260, 15904520, 31809040]

約数ペア:

[(1, 31809040), (2, 15904520), (4, 7952260), (5, 6361808), (8, 3976130), (10, 3180904), (16, 1988065), (17, 1871120), (19, 1674160), (20, 1590452), (34, 935560), (38, 837080), (40, 795226), (68, 467780), (76, 418540), (80, 397613), (85, 374224), (95, 334832), (136, 233890), (152, 209270), (170, 187112), (190, 167416), (272, 116945), (304, 104635), (323, 98480), (340, 93556), (380, 83708), (646, 49240), (680, 46778), (760, 41854), (1231, 25840), (1292, 24620), (1360, 23389), (1520, 20927), (1615, 19696), (2462, 12920), (2584, 12310), (3230, 9848), (4924, 6460), (5168, 6155)]