279878788

素因数分解:

$2^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{631}}^1$

素因数の和:753

約数の個数: 72

約数和(自身を含む): 597133824

約数和(自身を除く): 317255036

約数列:

[1, 2, 4, 7, 14, 28, 31, 49, 62, 73, 98, 124, 146, 196, 217, 292, 434, 511, 631, 868, 1022, 1262, 1519, 2044, 2263, 2524, 3038, 3577, 4417, 4526, 6076, 7154, 8834, 9052, 14308, 15841, 17668, 19561, 30919, 31682, 39122, 46063, 61838, 63364, 78244, 92126, 110887, 123676, 136927, 184252, 221774, 273854, 322441, 443548, 547708, 644882, 958489, 1289764, 1427953, 1916978, 2257087, 2855906, 3833956, 4514174, 5711812, 9028348, 9995671, 19991342, 39982684, 69969697, 139939394, 279878788]

約数ペア:

[(1, 279878788), (2, 139939394), (4, 69969697), (7, 39982684), (14, 19991342), (28, 9995671), (31, 9028348), (49, 5711812), (62, 4514174), (73, 3833956), (98, 2855906), (124, 2257087), (146, 1916978), (196, 1427953), (217, 1289764), (292, 958489), (434, 644882), (511, 547708), (631, 443548), (868, 322441), (1022, 273854), (1262, 221774), (1519, 184252), (2044, 136927), (2263, 123676), (2524, 110887), (3038, 92126), (3577, 78244), (4417, 63364), (4526, 61838), (6076, 46063), (7154, 39122), (8834, 31682), (9052, 30919), (14308, 19561), (15841, 17668)]