28908040

素因数分解:

$2^3\times 5^1\times 7^5\times {\mathrm{43}}^1$

素因数の和:89

約数の個数: 96

約数和(自身を含む): 77647680

約数和(自身を除く): 48739640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 49, 56, 70, 86, 98, 140, 172, 196, 215, 245, 280, 301, 343, 344, 392, 430, 490, 602, 686, 860, 980, 1204, 1372, 1505, 1715, 1720, 1960, 2107, 2401, 2408, 2744, 3010, 3430, 4214, 4802, 6020, 6860, 8428, 9604, 10535, 12005, 12040, 13720, 14749, 16807, 16856, 19208, 21070, 24010, 29498, 33614, 42140, 48020, 58996, 67228, 73745, 84035, 84280, 96040, 103243, 117992, 134456, 147490, 168070, 206486, 294980, 336140, 412972, 516215, 589960, 672280, 722701, 825944, 1032430, 1445402, 2064860, 2890804, 3613505, 4129720, 5781608, 7227010, 14454020, 28908040]

約数ペア:

[(1, 28908040), (2, 14454020), (4, 7227010), (5, 5781608), (7, 4129720), (8, 3613505), (10, 2890804), (14, 2064860), (20, 1445402), (28, 1032430), (35, 825944), (40, 722701), (43, 672280), (49, 589960), (56, 516215), (70, 412972), (86, 336140), (98, 294980), (140, 206486), (172, 168070), (196, 147490), (215, 134456), (245, 117992), (280, 103243), (301, 96040), (343, 84280), (344, 84035), (392, 73745), (430, 67228), (490, 58996), (602, 48020), (686, 42140), (860, 33614), (980, 29498), (1204, 24010), (1372, 21070), (1505, 19208), (1715, 16856), (1720, 16807), (1960, 14749), (2107, 13720), (2401, 12040), (2408, 12005), (2744, 10535), (3010, 9604), (3430, 8428), (4214, 6860), (4802, 6020)]