20005497960

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{311}}^1\times {\mathrm{76579}}^1$

素因数の和:76911

約数の個数: 128

約数和(自身を含む): 68811724800

約数和(自身を除く): 48806226840

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 311, 420, 622, 840, 933, 1244, 1555, 1866, 2177, 2488, 3110, 3732, 4354, 4665, 6220, 6531, 7464, 8708, 9330, 10885, 12440, 13062, 17416, 18660, 21770, 26124, 32655, 37320, 43540, 52248, 65310, 76579, 87080, 130620, 153158, 229737, 261240, 306316, 382895, 459474, 536053, 612632, 765790, 918948, 1072106, 1148685, 1531580, 1608159, 1837896, 2144212, 2297370, 2680265, 3063160, 3216318, 4288424, 4594740, 5360530, 6432636, 8040795, 9189480, 10721060, 12865272, 16081590, 21442120, 23816069, 32163180, 47632138, 64326360, 71448207, 95264276, 119080345, 142896414, 166712483, 190528552, 238160690, 285792828, 333424966, 357241035, 476321380, 500137449, 571585656, 666849932, 714482070, 833562415, 952642760, 1000274898, 1333699864, 1428964140, 1667124830, 2000549796, 2500687245, 2857928280, 3334249660, 4001099592, 5001374490, 6668499320, 10002748980, 20005497960]

約数ペア:

[(1, 20005497960), (2, 10002748980), (3, 6668499320), (4, 5001374490), (5, 4001099592), (6, 3334249660), (7, 2857928280), (8, 2500687245), (10, 2000549796), (12, 1667124830), (14, 1428964140), (15, 1333699864), (20, 1000274898), (21, 952642760), (24, 833562415), (28, 714482070), (30, 666849932), (35, 571585656), (40, 500137449), (42, 476321380), (56, 357241035), (60, 333424966), (70, 285792828), (84, 238160690), (105, 190528552), (120, 166712483), (140, 142896414), (168, 119080345), (210, 95264276), (280, 71448207), (311, 64326360), (420, 47632138), (622, 32163180), (840, 23816069), (933, 21442120), (1244, 16081590), (1555, 12865272), (1866, 10721060), (2177, 9189480), (2488, 8040795), (3110, 6432636), (3732, 5360530), (4354, 4594740), (4665, 4288424), (6220, 3216318), (6531, 3063160), (7464, 2680265), (8708, 2297370), (9330, 2144212), (10885, 1837896), (12440, 1608159), (13062, 1531580), (17416, 1148685), (18660, 1072106), (21770, 918948), (26124, 765790), (32655, 612632), (37320, 536053), (43540, 459474), (52248, 382895), (65310, 306316), (76579, 261240), (87080, 229737), (130620, 153158)]