2019681680

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{245107}}^1$

素因数の和:245223

約数の個数: 40

約数和(自身を含む): 4741369152

約数和(自身を除く): 2721687472

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 206, 412, 515, 824, 1030, 1648, 2060, 4120, 8240, 245107, 490214, 980428, 1225535, 1960856, 2451070, 3921712, 4902140, 9804280, 19608560, 25246021, 50492042, 100984084, 126230105, 201968168, 252460210, 403936336, 504920420, 1009840840, 2019681680]

約数ペア:

[(1, 2019681680), (2, 1009840840), (4, 504920420), (5, 403936336), (8, 252460210), (10, 201968168), (16, 126230105), (20, 100984084), (40, 50492042), (80, 25246021), (103, 19608560), (206, 9804280), (412, 4902140), (515, 3921712), (824, 2451070), (1030, 1960856), (1648, 1225535), (2060, 980428), (4120, 490214), (8240, 245107)]