20478600

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{367}}^1$

素因数の和:420

約数の個数: 144

約数和(自身を含む): 71185920

約数和(自身を除く): 50707320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 30, 31, 36, 40, 45, 50, 60, 62, 72, 75, 90, 93, 100, 120, 124, 150, 155, 180, 186, 200, 225, 248, 279, 300, 310, 360, 367, 372, 450, 465, 558, 600, 620, 734, 744, 775, 900, 930, 1101, 1116, 1240, 1395, 1468, 1550, 1800, 1835, 1860, 2202, 2232, 2325, 2790, 2936, 3100, 3303, 3670, 3720, 4404, 4650, 5505, 5580, 6200, 6606, 6975, 7340, 8808, 9175, 9300, 11010, 11160, 11377, 13212, 13950, 14680, 16515, 18350, 18600, 22020, 22754, 26424, 27525, 27900, 33030, 34131, 36700, 44040, 45508, 55050, 55800, 56885, 66060, 68262, 73400, 82575, 91016, 102393, 110100, 113770, 132120, 136524, 165150, 170655, 204786, 220200, 227540, 273048, 284425, 330300, 341310, 409572, 455080, 511965, 568850, 660600, 682620, 819144, 853275, 1023930, 1137700, 1365240, 1706550, 2047860, 2275400, 2559825, 3413100, 4095720, 5119650, 6826200, 10239300, 20478600]

約数ペア:

[(1, 20478600), (2, 10239300), (3, 6826200), (4, 5119650), (5, 4095720), (6, 3413100), (8, 2559825), (9, 2275400), (10, 2047860), (12, 1706550), (15, 1365240), (18, 1137700), (20, 1023930), (24, 853275), (25, 819144), (30, 682620), (31, 660600), (36, 568850), (40, 511965), (45, 455080), (50, 409572), (60, 341310), (62, 330300), (72, 284425), (75, 273048), (90, 227540), (93, 220200), (100, 204786), (120, 170655), (124, 165150), (150, 136524), (155, 132120), (180, 113770), (186, 110100), (200, 102393), (225, 91016), (248, 82575), (279, 73400), (300, 68262), (310, 66060), (360, 56885), (367, 55800), (372, 55050), (450, 45508), (465, 44040), (558, 36700), (600, 34131), (620, 33030), (734, 27900), (744, 27525), (775, 26424), (900, 22754), (930, 22020), (1101, 18600), (1116, 18350), (1240, 16515), (1395, 14680), (1468, 13950), (1550, 13212), (1800, 11377), (1835, 11160), (1860, 11010), (2202, 9300), (2232, 9175), (2325, 8808), (2790, 7340), (2936, 6975), (3100, 6606), (3303, 6200), (3670, 5580), (3720, 5505), (4404, 4650)]