20207970

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{7243}}^1$

素因数の和:7287

約数の個数: 48

約数和(自身を含む): 54243072

約数和(自身を除く): 34035102

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 31, 45, 62, 90, 93, 155, 186, 279, 310, 465, 558, 930, 1395, 2790, 7243, 14486, 21729, 36215, 43458, 65187, 72430, 108645, 130374, 217290, 224533, 325935, 449066, 651870, 673599, 1122665, 1347198, 2020797, 2245330, 3367995, 4041594, 6735990, 10103985, 20207970]

約数ペア:

[(1, 20207970), (2, 10103985), (3, 6735990), (5, 4041594), (6, 3367995), (9, 2245330), (10, 2020797), (15, 1347198), (18, 1122665), (30, 673599), (31, 651870), (45, 449066), (62, 325935), (90, 224533), (93, 217290), (155, 130374), (186, 108645), (279, 72430), (310, 65187), (465, 43458), (558, 36215), (930, 21729), (1395, 14486), (2790, 7243)]