20537790

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7523}}^1$

素因数の和:7553

約数の個数: 64

約数和(自身を含む): 60673536

約数和(自身を除く): 40135746

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 30, 35, 39, 42, 65, 70, 78, 91, 105, 130, 182, 195, 210, 273, 390, 455, 546, 910, 1365, 2730, 7523, 15046, 22569, 37615, 45138, 52661, 75230, 97799, 105322, 112845, 157983, 195598, 225690, 263305, 293397, 315966, 488995, 526610, 586794, 684593, 789915, 977990, 1369186, 1466985, 1579830, 2053779, 2933970, 3422965, 4107558, 6845930, 10268895, 20537790]

約数ペア:

[(1, 20537790), (2, 10268895), (3, 6845930), (5, 4107558), (6, 3422965), (7, 2933970), (10, 2053779), (13, 1579830), (14, 1466985), (15, 1369186), (21, 977990), (26, 789915), (30, 684593), (35, 586794), (39, 526610), (42, 488995), (65, 315966), (70, 293397), (78, 263305), (91, 225690), (105, 195598), (130, 157983), (182, 112845), (195, 105322), (210, 97799), (273, 75230), (390, 52661), (455, 45138), (546, 37615), (910, 22569), (1365, 15046), (2730, 7523)]