20448610

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{977}}^1$

素因数の和:1027

約数の個数: 64

約数和(自身を含む): 47319552

約数和(自身を除く): 26870942

約数列:

[1, 2, 5, 7, 10, 13, 14, 23, 26, 35, 46, 65, 70, 91, 115, 130, 161, 182, 230, 299, 322, 455, 598, 805, 910, 977, 1495, 1610, 1954, 2093, 2990, 4186, 4885, 6839, 9770, 10465, 12701, 13678, 20930, 22471, 25402, 34195, 44942, 63505, 68390, 88907, 112355, 127010, 157297, 177814, 224710, 292123, 314594, 444535, 584246, 786485, 889070, 1460615, 1572970, 2044861, 2921230, 4089722, 10224305, 20448610]

約数ペア:

[(1, 20448610), (2, 10224305), (5, 4089722), (7, 2921230), (10, 2044861), (13, 1572970), (14, 1460615), (23, 889070), (26, 786485), (35, 584246), (46, 444535), (65, 314594), (70, 292123), (91, 224710), (115, 177814), (130, 157297), (161, 127010), (182, 112355), (230, 88907), (299, 68390), (322, 63505), (455, 44942), (598, 34195), (805, 25402), (910, 22471), (977, 20930), (1495, 13678), (1610, 12701), (1954, 10465), (2093, 9770), (2990, 6839), (4186, 4885)]