31519980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{4271}}^1$

素因数の和:4327

約数の個数: 72

約数和(自身を含む): 97965504

約数和(自身を除く): 66445524

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 41, 45, 60, 82, 90, 123, 164, 180, 205, 246, 369, 410, 492, 615, 738, 820, 1230, 1476, 1845, 2460, 3690, 4271, 7380, 8542, 12813, 17084, 21355, 25626, 38439, 42710, 51252, 64065, 76878, 85420, 128130, 153756, 175111, 192195, 256260, 350222, 384390, 525333, 700444, 768780, 875555, 1050666, 1575999, 1751110, 2101332, 2626665, 3151998, 3502220, 5253330, 6303996, 7879995, 10506660, 15759990, 31519980]

約数ペア:

[(1, 31519980), (2, 15759990), (3, 10506660), (4, 7879995), (5, 6303996), (6, 5253330), (9, 3502220), (10, 3151998), (12, 2626665), (15, 2101332), (18, 1751110), (20, 1575999), (30, 1050666), (36, 875555), (41, 768780), (45, 700444), (60, 525333), (82, 384390), (90, 350222), (123, 256260), (164, 192195), (180, 175111), (205, 153756), (246, 128130), (369, 85420), (410, 76878), (492, 64065), (615, 51252), (738, 42710), (820, 38439), (1230, 25626), (1476, 21355), (1845, 17084), (2460, 12813), (3690, 8542), (4271, 7380)]