19907208

素因数分解:

$2^3\times 3^4\times {\mathrm{31}}^1\times {\mathrm{991}}^1$

素因数の和:1040

約数の個数: 80

約数和(自身を含む): 57615360

約数和(自身を除く): 37708152

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 31, 36, 54, 62, 72, 81, 93, 108, 124, 162, 186, 216, 248, 279, 324, 372, 558, 648, 744, 837, 991, 1116, 1674, 1982, 2232, 2511, 2973, 3348, 3964, 5022, 5946, 6696, 7928, 8919, 10044, 11892, 17838, 20088, 23784, 26757, 30721, 35676, 53514, 61442, 71352, 80271, 92163, 107028, 122884, 160542, 184326, 214056, 245768, 276489, 321084, 368652, 552978, 642168, 737304, 829467, 1105956, 1658934, 2211912, 2488401, 3317868, 4976802, 6635736, 9953604, 19907208]

約数ペア:

[(1, 19907208), (2, 9953604), (3, 6635736), (4, 4976802), (6, 3317868), (8, 2488401), (9, 2211912), (12, 1658934), (18, 1105956), (24, 829467), (27, 737304), (31, 642168), (36, 552978), (54, 368652), (62, 321084), (72, 276489), (81, 245768), (93, 214056), (108, 184326), (124, 160542), (162, 122884), (186, 107028), (216, 92163), (248, 80271), (279, 71352), (324, 61442), (372, 53514), (558, 35676), (648, 30721), (744, 26757), (837, 23784), (991, 20088), (1116, 17838), (1674, 11892), (1982, 10044), (2232, 8919), (2511, 7928), (2973, 6696), (3348, 5946), (3964, 5022)]