19518170

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{653}}^1$

素因数の和:735

約数の個数: 48

約数和(自身を含む): 41602248

約数和(自身を除く): 22084078

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 61, 70, 98, 122, 245, 305, 427, 490, 610, 653, 854, 1306, 2135, 2989, 3265, 4270, 4571, 5978, 6530, 9142, 14945, 22855, 29890, 31997, 39833, 45710, 63994, 79666, 159985, 199165, 278831, 319970, 398330, 557662, 1394155, 1951817, 2788310, 3903634, 9759085, 19518170]

約数ペア:

[(1, 19518170), (2, 9759085), (5, 3903634), (7, 2788310), (10, 1951817), (14, 1394155), (35, 557662), (49, 398330), (61, 319970), (70, 278831), (98, 199165), (122, 159985), (245, 79666), (305, 63994), (427, 45710), (490, 39833), (610, 31997), (653, 29890), (854, 22855), (1306, 14945), (2135, 9142), (2989, 6530), (3265, 5978), (4270, 4571)]