19219832975

素因数分解:

$5^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{839}}^1\times {\mathrm{1657}}^1$

素因数の和:2592

約数の個数: 48

約数和(自身を含む): 27631564800

約数和(自身を除く): 8411731825

約数列:

[1, 5, 7, 25, 35, 79, 175, 395, 553, 839, 1657, 1975, 2765, 4195, 5873, 8285, 11599, 13825, 20975, 29365, 41425, 57995, 66281, 130903, 146825, 289975, 331405, 463967, 654515, 916321, 1390223, 1657025, 2319835, 3272575, 4581605, 6951115, 9731561, 11599175, 22908025, 34755575, 48657805, 109827617, 243289025, 549138085, 768793319, 2745690425, 3843966595, 19219832975]

約数ペア:

[(1, 19219832975), (5, 3843966595), (7, 2745690425), (25, 768793319), (35, 549138085), (79, 243289025), (175, 109827617), (395, 48657805), (553, 34755575), (839, 22908025), (1657, 11599175), (1975, 9731561), (2765, 6951115), (4195, 4581605), (5873, 3272575), (8285, 2319835), (11599, 1657025), (13825, 1390223), (20975, 916321), (29365, 654515), (41425, 463967), (57995, 331405), (66281, 289975), (130903, 146825)]