290612920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{317}}^1$

素因数の和:425

約数の個数: 128

約数和(自身を含む): 740456640

約数和(自身を除く): 449843720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 41, 43, 52, 65, 82, 86, 104, 130, 164, 172, 205, 215, 260, 317, 328, 344, 410, 430, 520, 533, 559, 634, 820, 860, 1066, 1118, 1268, 1585, 1640, 1720, 1763, 2132, 2236, 2536, 2665, 2795, 3170, 3526, 4121, 4264, 4472, 5330, 5590, 6340, 7052, 8242, 8815, 10660, 11180, 12680, 12997, 13631, 14104, 16484, 17630, 20605, 21320, 22360, 22919, 25994, 27262, 32968, 35260, 41210, 45838, 51988, 54524, 64985, 68155, 70520, 82420, 91676, 103976, 109048, 114595, 129970, 136310, 164840, 168961, 177203, 183352, 229190, 259940, 272620, 337922, 354406, 458380, 519880, 545240, 558871, 675844, 708812, 844805, 886015, 916760, 1117742, 1351688, 1417624, 1689610, 1772030, 2235484, 2794355, 3379220, 3544060, 4470968, 5588710, 6758440, 7088120, 7265323, 11177420, 14530646, 22354840, 29061292, 36326615, 58122584, 72653230, 145306460, 290612920]

約数ペア:

[(1, 290612920), (2, 145306460), (4, 72653230), (5, 58122584), (8, 36326615), (10, 29061292), (13, 22354840), (20, 14530646), (26, 11177420), (40, 7265323), (41, 7088120), (43, 6758440), (52, 5588710), (65, 4470968), (82, 3544060), (86, 3379220), (104, 2794355), (130, 2235484), (164, 1772030), (172, 1689610), (205, 1417624), (215, 1351688), (260, 1117742), (317, 916760), (328, 886015), (344, 844805), (410, 708812), (430, 675844), (520, 558871), (533, 545240), (559, 519880), (634, 458380), (820, 354406), (860, 337922), (1066, 272620), (1118, 259940), (1268, 229190), (1585, 183352), (1640, 177203), (1720, 168961), (1763, 164840), (2132, 136310), (2236, 129970), (2536, 114595), (2665, 109048), (2795, 103976), (3170, 91676), (3526, 82420), (4121, 70520), (4264, 68155), (4472, 64985), (5330, 54524), (5590, 51988), (6340, 45838), (7052, 41210), (8242, 35260), (8815, 32968), (10660, 27262), (11180, 25994), (12680, 22919), (12997, 22360), (13631, 21320), (14104, 20605), (16484, 17630)]