20129400

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{53}}^1\times {\mathrm{211}}^1$

素因数の和:286

約数の個数: 144

約数和(自身を含む): 69203160

約数和(自身を除く): 49073760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 30, 36, 40, 45, 50, 53, 60, 72, 75, 90, 100, 106, 120, 150, 159, 180, 200, 211, 212, 225, 265, 300, 318, 360, 422, 424, 450, 477, 530, 600, 633, 636, 795, 844, 900, 954, 1055, 1060, 1266, 1272, 1325, 1590, 1688, 1800, 1899, 1908, 2110, 2120, 2385, 2532, 2650, 3165, 3180, 3798, 3816, 3975, 4220, 4770, 5064, 5275, 5300, 6330, 6360, 7596, 7950, 8440, 9495, 9540, 10550, 10600, 11183, 11925, 12660, 15192, 15825, 15900, 18990, 19080, 21100, 22366, 23850, 25320, 31650, 31800, 33549, 37980, 42200, 44732, 47475, 47700, 55915, 63300, 67098, 75960, 89464, 94950, 95400, 100647, 111830, 126600, 134196, 167745, 189900, 201294, 223660, 268392, 279575, 335490, 379800, 402588, 447320, 503235, 559150, 670980, 805176, 838725, 1006470, 1118300, 1341960, 1677450, 2012940, 2236600, 2516175, 3354900, 4025880, 5032350, 6709800, 10064700, 20129400]

約数ペア:

[(1, 20129400), (2, 10064700), (3, 6709800), (4, 5032350), (5, 4025880), (6, 3354900), (8, 2516175), (9, 2236600), (10, 2012940), (12, 1677450), (15, 1341960), (18, 1118300), (20, 1006470), (24, 838725), (25, 805176), (30, 670980), (36, 559150), (40, 503235), (45, 447320), (50, 402588), (53, 379800), (60, 335490), (72, 279575), (75, 268392), (90, 223660), (100, 201294), (106, 189900), (120, 167745), (150, 134196), (159, 126600), (180, 111830), (200, 100647), (211, 95400), (212, 94950), (225, 89464), (265, 75960), (300, 67098), (318, 63300), (360, 55915), (422, 47700), (424, 47475), (450, 44732), (477, 42200), (530, 37980), (600, 33549), (633, 31800), (636, 31650), (795, 25320), (844, 23850), (900, 22366), (954, 21100), (1055, 19080), (1060, 18990), (1266, 15900), (1272, 15825), (1325, 15192), (1590, 12660), (1688, 11925), (1800, 11183), (1899, 10600), (1908, 10550), (2110, 9540), (2120, 9495), (2385, 8440), (2532, 7950), (2650, 7596), (3165, 6360), (3180, 6330), (3798, 5300), (3816, 5275), (3975, 5064), (4220, 4770)]