3290140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{331}}^1$

素因数の和:418

約数の個数: 48

約数和(自身を含む): 8031744

約数和(自身を除く): 4741604

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 331, 355, 497, 662, 710, 994, 1324, 1420, 1655, 1988, 2317, 2485, 3310, 4634, 4970, 6620, 9268, 9940, 11585, 23170, 23501, 46340, 47002, 94004, 117505, 164507, 235010, 329014, 470020, 658028, 822535, 1645070, 3290140]

約数ペア:

[(1, 3290140), (2, 1645070), (4, 822535), (5, 658028), (7, 470020), (10, 329014), (14, 235010), (20, 164507), (28, 117505), (35, 94004), (70, 47002), (71, 46340), (140, 23501), (142, 23170), (284, 11585), (331, 9940), (355, 9268), (497, 6620), (662, 4970), (710, 4634), (994, 3310), (1324, 2485), (1420, 2317), (1655, 1988)]