18914740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{3163}}^1$

素因数の和:3208

約数の個数: 48

約数和(自身を含む): 44650368

約数和(自身を除く): 25735628

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 26, 46, 52, 65, 92, 115, 130, 230, 260, 299, 460, 598, 1196, 1495, 2990, 3163, 5980, 6326, 12652, 15815, 31630, 41119, 63260, 72749, 82238, 145498, 164476, 205595, 290996, 363745, 411190, 727490, 822380, 945737, 1454980, 1891474, 3782948, 4728685, 9457370, 18914740]

約数ペア:

[(1, 18914740), (2, 9457370), (4, 4728685), (5, 3782948), (10, 1891474), (13, 1454980), (20, 945737), (23, 822380), (26, 727490), (46, 411190), (52, 363745), (65, 290996), (92, 205595), (115, 164476), (130, 145498), (230, 82238), (260, 72749), (299, 63260), (460, 41119), (598, 31630), (1196, 15815), (1495, 12652), (2990, 6326), (3163, 5980)]