20186400

素因数分解:

$2^5\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{647}}^1$

素因数の和:683

約数の個数: 144

約数和(自身を含む): 70870464

約数和(自身を除く): 50684064

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 25, 26, 30, 32, 39, 40, 48, 50, 52, 60, 65, 75, 78, 80, 96, 100, 104, 120, 130, 150, 156, 160, 195, 200, 208, 240, 260, 300, 312, 325, 390, 400, 416, 480, 520, 600, 624, 647, 650, 780, 800, 975, 1040, 1200, 1248, 1294, 1300, 1560, 1941, 1950, 2080, 2400, 2588, 2600, 3120, 3235, 3882, 3900, 5176, 5200, 6240, 6470, 7764, 7800, 8411, 9705, 10352, 10400, 12940, 15528, 15600, 16175, 16822, 19410, 20704, 25233, 25880, 31056, 31200, 32350, 33644, 38820, 42055, 48525, 50466, 51760, 62112, 64700, 67288, 77640, 84110, 97050, 100932, 103520, 126165, 129400, 134576, 155280, 168220, 194100, 201864, 210275, 252330, 258800, 269152, 310560, 336440, 388200, 403728, 420550, 504660, 517600, 630825, 672880, 776400, 807456, 841100, 1009320, 1261650, 1345760, 1552800, 1682200, 2018640, 2523300, 3364400, 4037280, 5046600, 6728800, 10093200, 20186400]

約数ペア:

[(1, 20186400), (2, 10093200), (3, 6728800), (4, 5046600), (5, 4037280), (6, 3364400), (8, 2523300), (10, 2018640), (12, 1682200), (13, 1552800), (15, 1345760), (16, 1261650), (20, 1009320), (24, 841100), (25, 807456), (26, 776400), (30, 672880), (32, 630825), (39, 517600), (40, 504660), (48, 420550), (50, 403728), (52, 388200), (60, 336440), (65, 310560), (75, 269152), (78, 258800), (80, 252330), (96, 210275), (100, 201864), (104, 194100), (120, 168220), (130, 155280), (150, 134576), (156, 129400), (160, 126165), (195, 103520), (200, 100932), (208, 97050), (240, 84110), (260, 77640), (300, 67288), (312, 64700), (325, 62112), (390, 51760), (400, 50466), (416, 48525), (480, 42055), (520, 38820), (600, 33644), (624, 32350), (647, 31200), (650, 31056), (780, 25880), (800, 25233), (975, 20704), (1040, 19410), (1200, 16822), (1248, 16175), (1294, 15600), (1300, 15528), (1560, 12940), (1941, 10400), (1950, 10352), (2080, 9705), (2400, 8411), (2588, 7800), (2600, 7764), (3120, 6470), (3235, 6240), (3882, 5200), (3900, 5176)]