220455508

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2791}}^1$

素因数の和:2853

約数の個数: 72

約数和(自身を含む): 499075584

約数和(自身を除く): 278620076

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 31, 49, 52, 62, 91, 98, 124, 182, 196, 217, 364, 403, 434, 637, 806, 868, 1274, 1519, 1612, 2548, 2791, 2821, 3038, 5582, 5642, 6076, 11164, 11284, 19537, 19747, 36283, 39074, 39494, 72566, 78148, 78988, 86521, 136759, 145132, 173042, 253981, 273518, 346084, 507962, 547036, 605647, 1015924, 1124773, 1211294, 1777867, 2249546, 2422588, 3555734, 4239529, 4499092, 7111468, 7873411, 8479058, 15746822, 16958116, 31493644, 55113877, 110227754, 220455508]

約数ペア:

[(1, 220455508), (2, 110227754), (4, 55113877), (7, 31493644), (13, 16958116), (14, 15746822), (26, 8479058), (28, 7873411), (31, 7111468), (49, 4499092), (52, 4239529), (62, 3555734), (91, 2422588), (98, 2249546), (124, 1777867), (182, 1211294), (196, 1124773), (217, 1015924), (364, 605647), (403, 547036), (434, 507962), (637, 346084), (806, 273518), (868, 253981), (1274, 173042), (1519, 145132), (1612, 136759), (2548, 86521), (2791, 78988), (2821, 78148), (3038, 72566), (5582, 39494), (5642, 39074), (6076, 36283), (11164, 19747), (11284, 19537)]