20178051340

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{279397}}^1$

素因数の和:279586

約数の個数: 48

約数和(自身を含む): 44498043072

約数和(自身を除く): 24319991732

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 157, 230, 314, 460, 628, 785, 1570, 3140, 3611, 7222, 14444, 18055, 36110, 72220, 279397, 558794, 1117588, 1396985, 2793970, 5587940, 6426131, 12852262, 25704524, 32130655, 43865329, 64261310, 87730658, 128522620, 175461316, 219326645, 438653290, 877306580, 1008902567, 2017805134, 4035610268, 5044512835, 10089025670, 20178051340]

約数ペア:

[(1, 20178051340), (2, 10089025670), (4, 5044512835), (5, 4035610268), (10, 2017805134), (20, 1008902567), (23, 877306580), (46, 438653290), (92, 219326645), (115, 175461316), (157, 128522620), (230, 87730658), (314, 64261310), (460, 43865329), (628, 32130655), (785, 25704524), (1570, 12852262), (3140, 6426131), (3611, 5587940), (7222, 2793970), (14444, 1396985), (18055, 1117588), (36110, 558794), (72220, 279397)]