18809980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{113}}^1$

素因数の和:199

約数の個数: 96

約数和(自身を含む): 48263040

約数和(自身を除く): 29453060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 41, 58, 70, 82, 113, 116, 140, 145, 164, 203, 205, 226, 287, 290, 406, 410, 452, 565, 574, 580, 791, 812, 820, 1015, 1130, 1148, 1189, 1435, 1582, 2030, 2260, 2378, 2870, 3164, 3277, 3955, 4060, 4633, 4756, 5740, 5945, 6554, 7910, 8323, 9266, 11890, 13108, 15820, 16385, 16646, 18532, 22939, 23165, 23780, 32431, 32770, 33292, 41615, 45878, 46330, 64862, 65540, 83230, 91756, 92660, 114695, 129724, 134357, 162155, 166460, 229390, 268714, 324310, 458780, 537428, 648620, 671785, 940499, 1343570, 1880998, 2687140, 3761996, 4702495, 9404990, 18809980]

約数ペア:

[(1, 18809980), (2, 9404990), (4, 4702495), (5, 3761996), (7, 2687140), (10, 1880998), (14, 1343570), (20, 940499), (28, 671785), (29, 648620), (35, 537428), (41, 458780), (58, 324310), (70, 268714), (82, 229390), (113, 166460), (116, 162155), (140, 134357), (145, 129724), (164, 114695), (203, 92660), (205, 91756), (226, 83230), (287, 65540), (290, 64862), (406, 46330), (410, 45878), (452, 41615), (565, 33292), (574, 32770), (580, 32431), (791, 23780), (812, 23165), (820, 22939), (1015, 18532), (1130, 16646), (1148, 16385), (1189, 15820), (1435, 13108), (1582, 11890), (2030, 9266), (2260, 8323), (2378, 7910), (2870, 6554), (3164, 5945), (3277, 5740), (3955, 4756), (4060, 4633)]