254620380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{647}}^1\times {\mathrm{937}}^1$

素因数の和:1603

約数の個数: 96

約数和(自身を含む): 816915456

約数和(自身を除く): 562295076

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 647, 937, 1294, 1874, 1941, 2588, 2811, 3235, 3748, 3882, 4529, 4685, 5622, 6470, 6559, 7764, 9058, 9370, 9705, 11244, 12940, 13118, 13587, 14055, 18116, 18740, 19410, 19677, 22645, 26236, 27174, 28110, 32795, 38820, 39354, 45290, 54348, 56220, 65590, 67935, 78708, 90580, 98385, 131180, 135870, 196770, 271740, 393540, 606239, 1212478, 1818717, 2424956, 3031195, 3637434, 4243673, 6062390, 7274868, 8487346, 9093585, 12124780, 12731019, 16974692, 18187170, 21218365, 25462038, 36374340, 42436730, 50924076, 63655095, 84873460, 127310190, 254620380]

約数ペア:

[(1, 254620380), (2, 127310190), (3, 84873460), (4, 63655095), (5, 50924076), (6, 42436730), (7, 36374340), (10, 25462038), (12, 21218365), (14, 18187170), (15, 16974692), (20, 12731019), (21, 12124780), (28, 9093585), (30, 8487346), (35, 7274868), (42, 6062390), (60, 4243673), (70, 3637434), (84, 3031195), (105, 2424956), (140, 1818717), (210, 1212478), (420, 606239), (647, 393540), (937, 271740), (1294, 196770), (1874, 135870), (1941, 131180), (2588, 98385), (2811, 90580), (3235, 78708), (3748, 67935), (3882, 65590), (4529, 56220), (4685, 54348), (5622, 45290), (6470, 39354), (6559, 38820), (7764, 32795), (9058, 28110), (9370, 27174), (9705, 26236), (11244, 22645), (12940, 19677), (13118, 19410), (13587, 18740), (14055, 18116)]