81264216

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{953}}^1$

素因数の和:1009

約数の個数: 128

約数和(自身を含む): 247276800

約数和(自身を除く): 166012584

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 17, 19, 22, 24, 33, 34, 38, 44, 51, 57, 66, 68, 76, 88, 102, 114, 132, 136, 152, 187, 204, 209, 228, 264, 323, 374, 408, 418, 456, 561, 627, 646, 748, 836, 953, 969, 1122, 1254, 1292, 1496, 1672, 1906, 1938, 2244, 2508, 2584, 2859, 3553, 3812, 3876, 4488, 5016, 5718, 7106, 7624, 7752, 10483, 10659, 11436, 14212, 16201, 18107, 20966, 21318, 22872, 28424, 31449, 32402, 36214, 41932, 42636, 48603, 54321, 62898, 64804, 72428, 83864, 85272, 97206, 108642, 125796, 129608, 144856, 178211, 194412, 199177, 217284, 251592, 307819, 356422, 388824, 398354, 434568, 534633, 597531, 615638, 712844, 796708, 923457, 1069266, 1195062, 1231276, 1425688, 1593416, 1846914, 2138532, 2390124, 2462552, 3386009, 3693828, 4277064, 4780248, 6772018, 7387656, 10158027, 13544036, 20316054, 27088072, 40632108, 81264216]

約数ペア:

[(1, 81264216), (2, 40632108), (3, 27088072), (4, 20316054), (6, 13544036), (8, 10158027), (11, 7387656), (12, 6772018), (17, 4780248), (19, 4277064), (22, 3693828), (24, 3386009), (33, 2462552), (34, 2390124), (38, 2138532), (44, 1846914), (51, 1593416), (57, 1425688), (66, 1231276), (68, 1195062), (76, 1069266), (88, 923457), (102, 796708), (114, 712844), (132, 615638), (136, 597531), (152, 534633), (187, 434568), (204, 398354), (209, 388824), (228, 356422), (264, 307819), (323, 251592), (374, 217284), (408, 199177), (418, 194412), (456, 178211), (561, 144856), (627, 129608), (646, 125796), (748, 108642), (836, 97206), (953, 85272), (969, 83864), (1122, 72428), (1254, 64804), (1292, 62898), (1496, 54321), (1672, 48603), (1906, 42636), (1938, 41932), (2244, 36214), (2508, 32402), (2584, 31449), (2859, 28424), (3553, 22872), (3812, 21318), (3876, 20966), (4488, 18107), (5016, 16201), (5718, 14212), (7106, 11436), (7624, 10659), (7752, 10483)]