20199077620

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{433}}^1\times {\mathrm{38237}}^1$

素因数の和:38740

約数の個数: 48

約数和(自身を含む): 43214140368

約数和(自身を除く): 23015062748

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 433, 610, 866, 1220, 1732, 2165, 4330, 8660, 26413, 38237, 52826, 76474, 105652, 132065, 152948, 191185, 264130, 382370, 528260, 764740, 2332457, 4664914, 9329828, 11662285, 16556621, 23324570, 33113242, 46649140, 66226484, 82783105, 165566210, 331132420, 1009953881, 2019907762, 4039815524, 5049769405, 10099538810, 20199077620]

約数ペア:

[(1, 20199077620), (2, 10099538810), (4, 5049769405), (5, 4039815524), (10, 2019907762), (20, 1009953881), (61, 331132420), (122, 165566210), (244, 82783105), (305, 66226484), (433, 46649140), (610, 33113242), (866, 23324570), (1220, 16556621), (1732, 11662285), (2165, 9329828), (4330, 4664914), (8660, 2332457), (26413, 764740), (38237, 528260), (52826, 382370), (76474, 264130), (105652, 191185), (132065, 152948)]