19450210

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{677}}^1$

素因数の和:727

約数の個数: 48

約数和(自身を含む): 40199976

約数和(自身を除く): 20749766

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 169, 170, 221, 338, 442, 677, 845, 1105, 1354, 1690, 2210, 2873, 3385, 5746, 6770, 8801, 11509, 14365, 17602, 23018, 28730, 44005, 57545, 88010, 114413, 115090, 149617, 228826, 299234, 572065, 748085, 1144130, 1496170, 1945021, 3890042, 9725105, 19450210]

約数ペア:

[(1, 19450210), (2, 9725105), (5, 3890042), (10, 1945021), (13, 1496170), (17, 1144130), (26, 748085), (34, 572065), (65, 299234), (85, 228826), (130, 149617), (169, 115090), (170, 114413), (221, 88010), (338, 57545), (442, 44005), (677, 28730), (845, 23018), (1105, 17602), (1354, 14365), (1690, 11509), (2210, 8801), (2873, 6770), (3385, 5746)]