18903430

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{20773}}^1$

素因数の和:20800

約数の個数: 32

約数和(自身を含む): 41880384

約数和(自身を除く): 22976954

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 20773, 41546, 103865, 145411, 207730, 270049, 290822, 540098, 727055, 1350245, 1454110, 1890343, 2700490, 3780686, 9451715, 18903430]

約数ペア:

[(1, 18903430), (2, 9451715), (5, 3780686), (7, 2700490), (10, 1890343), (13, 1454110), (14, 1350245), (26, 727055), (35, 540098), (65, 290822), (70, 270049), (91, 207730), (130, 145411), (182, 103865), (455, 41546), (910, 20773)]