20860190

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{9439}}^1$

素因数の和:9476

約数の個数: 32

約数和(自身を含む): 42819840

約数和(自身を除く): 21959650

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 442, 1105, 2210, 9439, 18878, 47195, 94390, 122707, 160463, 245414, 320926, 613535, 802315, 1227070, 1604630, 2086019, 4172038, 10430095, 20860190]

約数ペア:

[(1, 20860190), (2, 10430095), (5, 4172038), (10, 2086019), (13, 1604630), (17, 1227070), (26, 802315), (34, 613535), (65, 320926), (85, 245414), (130, 160463), (170, 122707), (221, 94390), (442, 47195), (1105, 18878), (2210, 9439)]