401020816

素因数分解:

$2^4\times 7^1\times {\mathrm{29}}^1\times {\mathrm{311}}^1\times {\mathrm{397}}^1$

素因数の和:752

約数の個数: 80

約数和(自身を含む): 923869440

約数和(自身を除く): 522848624

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 56, 58, 112, 116, 203, 232, 311, 397, 406, 464, 622, 794, 812, 1244, 1588, 1624, 2177, 2488, 2779, 3176, 3248, 4354, 4976, 5558, 6352, 8708, 9019, 11116, 11513, 17416, 18038, 22232, 23026, 34832, 36076, 44464, 46052, 63133, 72152, 80591, 92104, 123467, 126266, 144304, 161182, 184208, 246934, 252532, 322364, 493868, 505064, 644728, 864269, 987736, 1010128, 1289456, 1728538, 1975472, 3457076, 3580543, 6914152, 7161086, 13828304, 14322172, 25063801, 28644344, 50127602, 57288688, 100255204, 200510408, 401020816]

約数ペア:

[(1, 401020816), (2, 200510408), (4, 100255204), (7, 57288688), (8, 50127602), (14, 28644344), (16, 25063801), (28, 14322172), (29, 13828304), (56, 7161086), (58, 6914152), (112, 3580543), (116, 3457076), (203, 1975472), (232, 1728538), (311, 1289456), (397, 1010128), (406, 987736), (464, 864269), (622, 644728), (794, 505064), (812, 493868), (1244, 322364), (1588, 252532), (1624, 246934), (2177, 184208), (2488, 161182), (2779, 144304), (3176, 126266), (3248, 123467), (4354, 92104), (4976, 80591), (5558, 72152), (6352, 63133), (8708, 46052), (9019, 44464), (11116, 36076), (11513, 34832), (17416, 23026), (18038, 22232)]