19208840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2213}}^1$

素因数の和:2262

約数の個数: 64

約数和(自身を含む): 51010560

約数和(自身を除く): 31801720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 2170, 2213, 4340, 4426, 8680, 8852, 11065, 15491, 17704, 22130, 30982, 44260, 61964, 68603, 77455, 88520, 123928, 137206, 154910, 274412, 309820, 343015, 480221, 548824, 619640, 686030, 960442, 1372060, 1920884, 2401105, 2744120, 3841768, 4802210, 9604420, 19208840]

約数ペア:

[(1, 19208840), (2, 9604420), (4, 4802210), (5, 3841768), (7, 2744120), (8, 2401105), (10, 1920884), (14, 1372060), (20, 960442), (28, 686030), (31, 619640), (35, 548824), (40, 480221), (56, 343015), (62, 309820), (70, 274412), (124, 154910), (140, 137206), (155, 123928), (217, 88520), (248, 77455), (280, 68603), (310, 61964), (434, 44260), (620, 30982), (868, 22130), (1085, 17704), (1240, 15491), (1736, 11065), (2170, 8852), (2213, 8680), (4340, 4426)]