2019793840

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{257}}^1\times {\mathrm{3169}}^1$

素因数の和:3470

約数の個数: 80

約数和(自身を含む): 4867902720

約数和(自身を除く): 2848108880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 257, 310, 496, 514, 620, 1028, 1240, 1285, 2056, 2480, 2570, 3169, 4112, 5140, 6338, 7967, 10280, 12676, 15845, 15934, 20560, 25352, 31690, 31868, 39835, 50704, 63380, 63736, 79670, 98239, 126760, 127472, 159340, 196478, 253520, 318680, 392956, 491195, 637360, 785912, 814433, 982390, 1571824, 1628866, 1964780, 3257732, 3929560, 4072165, 6515464, 7859120, 8144330, 13030928, 16288660, 25247423, 32577320, 50494846, 65154640, 100989692, 126237115, 201979384, 252474230, 403958768, 504948460, 1009896920, 2019793840]

約数ペア:

[(1, 2019793840), (2, 1009896920), (4, 504948460), (5, 403958768), (8, 252474230), (10, 201979384), (16, 126237115), (20, 100989692), (31, 65154640), (40, 50494846), (62, 32577320), (80, 25247423), (124, 16288660), (155, 13030928), (248, 8144330), (257, 7859120), (310, 6515464), (496, 4072165), (514, 3929560), (620, 3257732), (1028, 1964780), (1240, 1628866), (1285, 1571824), (2056, 982390), (2480, 814433), (2570, 785912), (3169, 637360), (4112, 491195), (5140, 392956), (6338, 318680), (7967, 253520), (10280, 196478), (12676, 159340), (15845, 127472), (15934, 126760), (20560, 98239), (25352, 79670), (31690, 63736), (31868, 63380), (39835, 50704)]