20264450

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{257}}^1$

素因数の和:371

約数の個数: 48

約数和(自身を含む): 40309920

約数和(自身を除く): 20045470

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 83, 95, 166, 190, 257, 415, 475, 514, 830, 950, 1285, 1577, 2075, 2570, 3154, 4150, 4883, 6425, 7885, 9766, 12850, 15770, 21331, 24415, 39425, 42662, 48830, 78850, 106655, 122075, 213310, 244150, 405289, 533275, 810578, 1066550, 2026445, 4052890, 10132225, 20264450]

約数ペア:

[(1, 20264450), (2, 10132225), (5, 4052890), (10, 2026445), (19, 1066550), (25, 810578), (38, 533275), (50, 405289), (83, 244150), (95, 213310), (166, 122075), (190, 106655), (257, 78850), (415, 48830), (475, 42662), (514, 39425), (830, 24415), (950, 21331), (1285, 15770), (1577, 12850), (2075, 9766), (2570, 7885), (3154, 6425), (4150, 4883)]