284240

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:60

約数の個数: 80

約数和(自身を含む): 803520

約数和(自身を除く): 519280

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 19, 20, 22, 34, 38, 40, 44, 55, 68, 76, 80, 85, 88, 95, 110, 136, 152, 170, 176, 187, 190, 209, 220, 272, 304, 323, 340, 374, 380, 418, 440, 646, 680, 748, 760, 836, 880, 935, 1045, 1292, 1360, 1496, 1520, 1615, 1672, 1870, 2090, 2584, 2992, 3230, 3344, 3553, 3740, 4180, 5168, 6460, 7106, 7480, 8360, 12920, 14212, 14960, 16720, 17765, 25840, 28424, 35530, 56848, 71060, 142120, 284240]

約数ペア:

[(1, 284240), (2, 142120), (4, 71060), (5, 56848), (8, 35530), (10, 28424), (11, 25840), (16, 17765), (17, 16720), (19, 14960), (20, 14212), (22, 12920), (34, 8360), (38, 7480), (40, 7106), (44, 6460), (55, 5168), (68, 4180), (76, 3740), (80, 3553), (85, 3344), (88, 3230), (95, 2992), (110, 2584), (136, 2090), (152, 1870), (170, 1672), (176, 1615), (187, 1520), (190, 1496), (209, 1360), (220, 1292), (272, 1045), (304, 935), (323, 880), (340, 836), (374, 760), (380, 748), (418, 680), (440, 646)]