388534315

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1$

素因数の和:248

約数の個数: 64

約数和(自身を含む): 549964800

約数和(自身を除く): 161430485

約数列:

[1, 5, 13, 29, 31, 61, 65, 109, 145, 155, 305, 377, 403, 545, 793, 899, 1417, 1769, 1885, 1891, 2015, 3161, 3379, 3965, 4495, 6649, 7085, 8845, 9455, 11687, 15805, 16895, 22997, 24583, 33245, 41093, 43927, 54839, 58435, 86437, 97991, 114985, 122915, 192821, 205465, 206119, 219635, 274195, 432185, 489955, 712907, 964105, 1030595, 1273883, 2506673, 2679547, 3564535, 5977451, 6369415, 12533365, 13397735, 29887255, 77706863, 388534315]

約数ペア:

[(1, 388534315), (5, 77706863), (13, 29887255), (29, 13397735), (31, 12533365), (61, 6369415), (65, 5977451), (109, 3564535), (145, 2679547), (155, 2506673), (305, 1273883), (377, 1030595), (403, 964105), (545, 712907), (793, 489955), (899, 432185), (1417, 274195), (1769, 219635), (1885, 206119), (1891, 205465), (2015, 192821), (3161, 122915), (3379, 114985), (3965, 97991), (4495, 86437), (6649, 58435), (7085, 54839), (8845, 43927), (9455, 41093), (11687, 33245), (15805, 24583), (16895, 22997)]