20506590

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1031}}^1$

素因数の和:1074

約数の個数: 96

約数和(自身を含む): 60854976

約数和(自身を除く): 40348386

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 17, 18, 26, 30, 34, 39, 45, 51, 65, 78, 85, 90, 102, 117, 130, 153, 170, 195, 221, 234, 255, 306, 390, 442, 510, 585, 663, 765, 1031, 1105, 1170, 1326, 1530, 1989, 2062, 2210, 3093, 3315, 3978, 5155, 6186, 6630, 9279, 9945, 10310, 13403, 15465, 17527, 18558, 19890, 26806, 30930, 35054, 40209, 46395, 52581, 67015, 80418, 87635, 92790, 105162, 120627, 134030, 157743, 175270, 201045, 227851, 241254, 262905, 315486, 402090, 455702, 525810, 603135, 683553, 788715, 1139255, 1206270, 1367106, 1577430, 2050659, 2278510, 3417765, 4101318, 6835530, 10253295, 20506590]

約数ペア:

[(1, 20506590), (2, 10253295), (3, 6835530), (5, 4101318), (6, 3417765), (9, 2278510), (10, 2050659), (13, 1577430), (15, 1367106), (17, 1206270), (18, 1139255), (26, 788715), (30, 683553), (34, 603135), (39, 525810), (45, 455702), (51, 402090), (65, 315486), (78, 262905), (85, 241254), (90, 227851), (102, 201045), (117, 175270), (130, 157743), (153, 134030), (170, 120627), (195, 105162), (221, 92790), (234, 87635), (255, 80418), (306, 67015), (390, 52581), (442, 46395), (510, 40209), (585, 35054), (663, 30930), (765, 26806), (1031, 19890), (1105, 18558), (1170, 17527), (1326, 15465), (1530, 13403), (1989, 10310), (2062, 9945), (2210, 9279), (3093, 6630), (3315, 6186), (3978, 5155)]