20887860

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{1213}}^1$

素因数の和:1273

約数の個数: 96

約数和(自身を含む): 68527872

約数和(自身を除く): 47640012

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 41, 42, 60, 70, 82, 84, 105, 123, 140, 164, 205, 210, 246, 287, 410, 420, 492, 574, 615, 820, 861, 1148, 1213, 1230, 1435, 1722, 2426, 2460, 2870, 3444, 3639, 4305, 4852, 5740, 6065, 7278, 8491, 8610, 12130, 14556, 16982, 17220, 18195, 24260, 25473, 33964, 36390, 42455, 49733, 50946, 72780, 84910, 99466, 101892, 127365, 149199, 169820, 198932, 248665, 254730, 298398, 348131, 497330, 509460, 596796, 696262, 745995, 994660, 1044393, 1392524, 1491990, 1740655, 2088786, 2983980, 3481310, 4177572, 5221965, 6962620, 10443930, 20887860]

約数ペア:

[(1, 20887860), (2, 10443930), (3, 6962620), (4, 5221965), (5, 4177572), (6, 3481310), (7, 2983980), (10, 2088786), (12, 1740655), (14, 1491990), (15, 1392524), (20, 1044393), (21, 994660), (28, 745995), (30, 696262), (35, 596796), (41, 509460), (42, 497330), (60, 348131), (70, 298398), (82, 254730), (84, 248665), (105, 198932), (123, 169820), (140, 149199), (164, 127365), (205, 101892), (210, 99466), (246, 84910), (287, 72780), (410, 50946), (420, 49733), (492, 42455), (574, 36390), (615, 33964), (820, 25473), (861, 24260), (1148, 18195), (1213, 17220), (1230, 16982), (1435, 14556), (1722, 12130), (2426, 8610), (2460, 8491), (2870, 7278), (3444, 6065), (3639, 5740), (4305, 4852)]