64945860

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{647}}^1$

素因数の和:905

約数の個数: 96

約数和(自身を含む): 209018880

約数和(自身を除く): 144073020

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, 239, 420, 478, 647, 717, 956, 1195, 1294, 1434, 1673, 1941, 2390, 2588, 2868, 3235, 3346, 3585, 3882, 4529, 4780, 5019, 6470, 6692, 7170, 7764, 8365, 9058, 9705, 10038, 12940, 13587, 14340, 16730, 18116, 19410, 20076, 22645, 25095, 27174, 33460, 38820, 45290, 50190, 54348, 67935, 90580, 100380, 135870, 154633, 271740, 309266, 463899, 618532, 773165, 927798, 1082431, 1546330, 1855596, 2164862, 2319495, 3092660, 3247293, 4329724, 4638990, 5412155, 6494586, 9277980, 10824310, 12989172, 16236465, 21648620, 32472930, 64945860]

約数ペア:

[(1, 64945860), (2, 32472930), (3, 21648620), (4, 16236465), (5, 12989172), (6, 10824310), (7, 9277980), (10, 6494586), (12, 5412155), (14, 4638990), (15, 4329724), (20, 3247293), (21, 3092660), (28, 2319495), (30, 2164862), (35, 1855596), (42, 1546330), (60, 1082431), (70, 927798), (84, 773165), (105, 618532), (140, 463899), (210, 309266), (239, 271740), (420, 154633), (478, 135870), (647, 100380), (717, 90580), (956, 67935), (1195, 54348), (1294, 50190), (1434, 45290), (1673, 38820), (1941, 33460), (2390, 27174), (2588, 25095), (2868, 22645), (3235, 20076), (3346, 19410), (3585, 18116), (3882, 16730), (4529, 14340), (4780, 13587), (5019, 12940), (6470, 10038), (6692, 9705), (7170, 9058), (7764, 8365)]