64894720

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^2\times {\mathrm{419}}^1$

素因数の和:462

約数の個数: 108

約数和(自身を含む): 171266760

約数和(自身を除く): 106372040

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 121, 128, 160, 176, 220, 242, 256, 320, 352, 419, 440, 484, 605, 640, 704, 838, 880, 968, 1210, 1280, 1408, 1676, 1760, 1936, 2095, 2420, 2816, 3352, 3520, 3872, 4190, 4609, 4840, 6704, 7040, 7744, 8380, 9218, 9680, 13408, 14080, 15488, 16760, 18436, 19360, 23045, 26816, 30976, 33520, 36872, 38720, 46090, 50699, 53632, 67040, 73744, 77440, 92180, 101398, 107264, 134080, 147488, 154880, 184360, 202796, 253495, 268160, 294976, 368720, 405592, 506990, 536320, 589952, 737440, 811184, 1013980, 1179904, 1474880, 1622368, 2027960, 2949760, 3244736, 4055920, 5899520, 6489472, 8111840, 12978944, 16223680, 32447360, 64894720]

約数ペア:

[(1, 64894720), (2, 32447360), (4, 16223680), (5, 12978944), (8, 8111840), (10, 6489472), (11, 5899520), (16, 4055920), (20, 3244736), (22, 2949760), (32, 2027960), (40, 1622368), (44, 1474880), (55, 1179904), (64, 1013980), (80, 811184), (88, 737440), (110, 589952), (121, 536320), (128, 506990), (160, 405592), (176, 368720), (220, 294976), (242, 268160), (256, 253495), (320, 202796), (352, 184360), (419, 154880), (440, 147488), (484, 134080), (605, 107264), (640, 101398), (704, 92180), (838, 77440), (880, 73744), (968, 67040), (1210, 53632), (1280, 50699), (1408, 46090), (1676, 38720), (1760, 36872), (1936, 33520), (2095, 30976), (2420, 26816), (2816, 23045), (3352, 19360), (3520, 18436), (3872, 16760), (4190, 15488), (4609, 14080), (4840, 13408), (6704, 9680), (7040, 9218), (7744, 8380)]