20666460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{271}}^1$

素因数の和:355

約数の個数: 96

約数和(自身を含む): 61415424

約数和(自身を除く): 40748964

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 41, 60, 62, 82, 93, 123, 124, 155, 164, 186, 205, 246, 271, 310, 372, 410, 465, 492, 542, 615, 620, 813, 820, 930, 1084, 1230, 1271, 1355, 1626, 1860, 2460, 2542, 2710, 3252, 3813, 4065, 5084, 5420, 6355, 7626, 8130, 8401, 11111, 12710, 15252, 16260, 16802, 19065, 22222, 25203, 25420, 33333, 33604, 38130, 42005, 44444, 50406, 55555, 66666, 76260, 84010, 100812, 111110, 126015, 133332, 166665, 168020, 222220, 252030, 333330, 344441, 504060, 666660, 688882, 1033323, 1377764, 1722205, 2066646, 3444410, 4133292, 5166615, 6888820, 10333230, 20666460]

約数ペア:

[(1, 20666460), (2, 10333230), (3, 6888820), (4, 5166615), (5, 4133292), (6, 3444410), (10, 2066646), (12, 1722205), (15, 1377764), (20, 1033323), (30, 688882), (31, 666660), (41, 504060), (60, 344441), (62, 333330), (82, 252030), (93, 222220), (123, 168020), (124, 166665), (155, 133332), (164, 126015), (186, 111110), (205, 100812), (246, 84010), (271, 76260), (310, 66666), (372, 55555), (410, 50406), (465, 44444), (492, 42005), (542, 38130), (615, 33604), (620, 33333), (813, 25420), (820, 25203), (930, 22222), (1084, 19065), (1230, 16802), (1271, 16260), (1355, 15252), (1626, 12710), (1860, 11111), (2460, 8401), (2542, 8130), (2710, 7626), (3252, 6355), (3813, 5420), (4065, 5084)]