19220240

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{18481}}^1$

素因数の和:18507

約数の個数: 40

約数和(自身を含む): 48127128

約数和(自身を除く): 28906888

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 18481, 36962, 73924, 92405, 147848, 184810, 240253, 295696, 369620, 480506, 739240, 961012, 1201265, 1478480, 1922024, 2402530, 3844048, 4805060, 9610120, 19220240]

約数ペア:

[(1, 19220240), (2, 9610120), (4, 4805060), (5, 3844048), (8, 2402530), (10, 1922024), (13, 1478480), (16, 1201265), (20, 961012), (26, 739240), (40, 480506), (52, 369620), (65, 295696), (80, 240253), (104, 184810), (130, 147848), (208, 92405), (260, 73924), (520, 36962), (1040, 18481)]