20180781320

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{1801}}^1\times {\mathrm{5717}}^1$

素因数の和:7543

約数の個数: 96

約数和(自身を含む): 52858678680

約数和(自身を除く): 32677897360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1801, 1960, 3602, 5717, 7204, 9005, 11434, 12607, 14408, 18010, 22868, 25214, 28585, 36020, 40019, 45736, 50428, 57170, 63035, 72040, 80038, 88249, 100856, 114340, 126070, 160076, 176498, 200095, 228680, 252140, 280133, 320152, 352996, 400190, 441245, 504280, 560266, 705992, 800380, 882490, 1120532, 1400665, 1600760, 1764980, 2241064, 2801330, 3529960, 5602660, 10296317, 11205320, 20592634, 41185268, 51481585, 72074219, 82370536, 102963170, 144148438, 205926340, 288296876, 360371095, 411852680, 504519533, 576593752, 720742190, 1009039066, 1441484380, 2018078132, 2522597665, 2882968760, 4036156264, 5045195330, 10090390660, 20180781320]

約数ペア:

[(1, 20180781320), (2, 10090390660), (4, 5045195330), (5, 4036156264), (7, 2882968760), (8, 2522597665), (10, 2018078132), (14, 1441484380), (20, 1009039066), (28, 720742190), (35, 576593752), (40, 504519533), (49, 411852680), (56, 360371095), (70, 288296876), (98, 205926340), (140, 144148438), (196, 102963170), (245, 82370536), (280, 72074219), (392, 51481585), (490, 41185268), (980, 20592634), (1801, 11205320), (1960, 10296317), (3602, 5602660), (5717, 3529960), (7204, 2801330), (9005, 2241064), (11434, 1764980), (12607, 1600760), (14408, 1400665), (18010, 1120532), (22868, 882490), (25214, 800380), (28585, 705992), (36020, 560266), (40019, 504280), (45736, 441245), (50428, 400190), (57170, 352996), (63035, 320152), (72040, 280133), (80038, 252140), (88249, 228680), (100856, 200095), (114340, 176498), (126070, 160076)]