20176508275

素因数分解:

$5^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{653}}^1\times {\mathrm{2293}}^1$

素因数の和:2981

約数の個数: 72

約数和(自身を含む): 31811852304

約数和(自身を除く): 11635344029

約数列:

[1, 5, 7, 11, 25, 35, 49, 55, 77, 175, 245, 275, 385, 539, 653, 1225, 1925, 2293, 2695, 3265, 4571, 7183, 11465, 13475, 16051, 16325, 22855, 25223, 31997, 35915, 50281, 57325, 80255, 112357, 114275, 126115, 159985, 176561, 179575, 251405, 351967, 401275, 561785, 630575, 799925, 882805, 1235927, 1257025, 1497329, 1759835, 2808925, 4414025, 6179635, 7486645, 8799175, 10481303, 16470619, 30898175, 37433225, 52406515, 73369121, 82353095, 115294333, 262032575, 366845605, 411765475, 576471665, 807060331, 1834228025, 2882358325, 4035301655, 20176508275]

約数ペア:

[(1, 20176508275), (5, 4035301655), (7, 2882358325), (11, 1834228025), (25, 807060331), (35, 576471665), (49, 411765475), (55, 366845605), (77, 262032575), (175, 115294333), (245, 82353095), (275, 73369121), (385, 52406515), (539, 37433225), (653, 30898175), (1225, 16470619), (1925, 10481303), (2293, 8799175), (2695, 7486645), (3265, 6179635), (4571, 4414025), (7183, 2808925), (11465, 1759835), (13475, 1497329), (16051, 1257025), (16325, 1235927), (22855, 882805), (25223, 799925), (31997, 630575), (35915, 561785), (50281, 401275), (57325, 351967), (80255, 251405), (112357, 179575), (114275, 176561), (126115, 159985)]