28019862

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{151}}^1$

素因数の和:246

約数の個数: 72

約数和(自身を含む): 67259088

約数和(自身を除く): 39239226

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 61, 78, 117, 122, 151, 169, 183, 234, 302, 338, 366, 453, 507, 549, 793, 906, 1014, 1098, 1359, 1521, 1586, 1963, 2379, 2718, 3042, 3926, 4758, 5889, 7137, 9211, 10309, 11778, 14274, 17667, 18422, 20618, 25519, 27633, 30927, 35334, 51038, 55266, 61854, 76557, 82899, 92781, 119743, 153114, 165798, 185562, 229671, 239486, 359229, 459342, 718458, 1077687, 1556659, 2155374, 3113318, 4669977, 9339954, 14009931, 28019862]

約数ペア:

[(1, 28019862), (2, 14009931), (3, 9339954), (6, 4669977), (9, 3113318), (13, 2155374), (18, 1556659), (26, 1077687), (39, 718458), (61, 459342), (78, 359229), (117, 239486), (122, 229671), (151, 185562), (169, 165798), (183, 153114), (234, 119743), (302, 92781), (338, 82899), (366, 76557), (453, 61854), (507, 55266), (549, 51038), (793, 35334), (906, 30927), (1014, 27633), (1098, 25519), (1359, 20618), (1521, 18422), (1586, 17667), (1963, 14274), (2379, 11778), (2718, 10309), (3042, 9211), (3926, 7137), (4758, 5889)]