80456863700

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{165311}}^1$

素因数の和:165513

約数の個数: 72

約数和(自身を含む): 181372391424

約数和(自身を除く): 100915527724

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 155, 157, 310, 314, 620, 628, 775, 785, 1550, 1570, 3100, 3140, 3925, 4867, 7850, 9734, 15700, 19468, 24335, 48670, 97340, 121675, 165311, 243350, 330622, 486700, 661244, 826555, 1653110, 3306220, 4132775, 5124641, 8265550, 10249282, 16531100, 20498564, 25623205, 25953827, 51246410, 51907654, 102492820, 103815308, 128116025, 129769135, 256232050, 259538270, 512464100, 519076540, 648845675, 804568637, 1297691350, 1609137274, 2595382700, 3218274548, 4022843185, 8045686370, 16091372740, 20114215925, 40228431850, 80456863700]

約数ペア:

[(1, 80456863700), (2, 40228431850), (4, 20114215925), (5, 16091372740), (10, 8045686370), (20, 4022843185), (25, 3218274548), (31, 2595382700), (50, 1609137274), (62, 1297691350), (100, 804568637), (124, 648845675), (155, 519076540), (157, 512464100), (310, 259538270), (314, 256232050), (620, 129769135), (628, 128116025), (775, 103815308), (785, 102492820), (1550, 51907654), (1570, 51246410), (3100, 25953827), (3140, 25623205), (3925, 20498564), (4867, 16531100), (7850, 10249282), (9734, 8265550), (15700, 5124641), (19468, 4132775), (24335, 3306220), (48670, 1653110), (97340, 826555), (121675, 661244), (165311, 486700), (243350, 330622)]