397999764

素因数分解:

$2^2\times 3^3\times {\mathrm{19}}^1\times {\mathrm{193957}}^1$

素因数の和:193989

約数の個数: 48

約数和(自身を含む): 1086164800

約数和(自身を除く): 688165036

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 27, 36, 38, 54, 57, 76, 108, 114, 171, 228, 342, 513, 684, 1026, 2052, 193957, 387914, 581871, 775828, 1163742, 1745613, 2327484, 3491226, 3685183, 5236839, 6982452, 7370366, 10473678, 11055549, 14740732, 20947356, 22111098, 33166647, 44222196, 66333294, 99499941, 132666588, 198999882, 397999764]

約数ペア:

[(1, 397999764), (2, 198999882), (3, 132666588), (4, 99499941), (6, 66333294), (9, 44222196), (12, 33166647), (18, 22111098), (19, 20947356), (27, 14740732), (36, 11055549), (38, 10473678), (54, 7370366), (57, 6982452), (76, 5236839), (108, 3685183), (114, 3491226), (171, 2327484), (228, 1745613), (342, 1163742), (513, 775828), (684, 581871), (1026, 387914), (2052, 193957)]