20173837902920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{62591}}^1\times {\mathrm{619831}}^1$

素因数の和:682446

約数の個数: 64

約数和(自身を含む): 48883620925440

約数和(自身を除く): 28709783022520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 62591, 125182, 250364, 312955, 500728, 619831, 625910, 813683, 1239662, 1251820, 1627366, 2479324, 2503640, 3099155, 3254732, 4068415, 4958648, 6198310, 6509464, 8057803, 8136830, 12396620, 16115606, 16273660, 24793240, 32231212, 32547320, 40289015, 64462424, 80578030, 161156060, 322312120, 38795842121, 77591684242, 155183368484, 193979210605, 310366736968, 387958421210, 504345947573, 775916842420, 1008691895146, 1551833684840, 2017383790292, 2521729737865, 4034767580584, 5043459475730, 10086918951460, 20173837902920]

約数ペア:

[(1, 20173837902920), (2, 10086918951460), (4, 5043459475730), (5, 4034767580584), (8, 2521729737865), (10, 2017383790292), (13, 1551833684840), (20, 1008691895146), (26, 775916842420), (40, 504345947573), (52, 387958421210), (65, 310366736968), (104, 193979210605), (130, 155183368484), (260, 77591684242), (520, 38795842121), (62591, 322312120), (125182, 161156060), (250364, 80578030), (312955, 64462424), (500728, 40289015), (619831, 32547320), (625910, 32231212), (813683, 24793240), (1239662, 16273660), (1251820, 16115606), (1627366, 12396620), (2479324, 8136830), (2503640, 8057803), (3099155, 6509464), (3254732, 6198310), (4068415, 4958648)]