388890290

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{163}}^1\times {\mathrm{433}}^1$

素因数の和:651

約数の個数: 64

約数和(自身を含む): 768700800

約数和(自身を除く): 379810510

約数列:

[1, 2, 5, 10, 19, 29, 38, 58, 95, 145, 163, 190, 290, 326, 433, 551, 815, 866, 1102, 1630, 2165, 2755, 3097, 4330, 4727, 5510, 6194, 8227, 9454, 12557, 15485, 16454, 23635, 25114, 30970, 41135, 47270, 62785, 70579, 82270, 89813, 125570, 141158, 179626, 238583, 352895, 449065, 477166, 705790, 898130, 1192915, 1341001, 2046791, 2385830, 2682002, 4093582, 6705005, 10233955, 13410010, 20467910, 38889029, 77778058, 194445145, 388890290]

約数ペア:

[(1, 388890290), (2, 194445145), (5, 77778058), (10, 38889029), (19, 20467910), (29, 13410010), (38, 10233955), (58, 6705005), (95, 4093582), (145, 2682002), (163, 2385830), (190, 2046791), (290, 1341001), (326, 1192915), (433, 898130), (551, 705790), (815, 477166), (866, 449065), (1102, 352895), (1630, 238583), (2165, 179626), (2755, 141158), (3097, 125570), (4330, 89813), (4727, 82270), (5510, 70579), (6194, 62785), (8227, 47270), (9454, 41135), (12557, 30970), (15485, 25114), (16454, 23635)]