139798220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{463}}^1\times {\mathrm{487}}^1$

素因数の和:990

約数の個数: 48

約数和(自身を含む): 304324608

約数和(自身を除く): 164526388

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 463, 487, 620, 926, 974, 1852, 1948, 2315, 2435, 4630, 4870, 9260, 9740, 14353, 15097, 28706, 30194, 57412, 60388, 71765, 75485, 143530, 150970, 225481, 287060, 301940, 450962, 901924, 1127405, 2254810, 4509620, 6989911, 13979822, 27959644, 34949555, 69899110, 139798220]

約数ペア:

[(1, 139798220), (2, 69899110), (4, 34949555), (5, 27959644), (10, 13979822), (20, 6989911), (31, 4509620), (62, 2254810), (124, 1127405), (155, 901924), (310, 450962), (463, 301940), (487, 287060), (620, 225481), (926, 150970), (974, 143530), (1852, 75485), (1948, 71765), (2315, 60388), (2435, 57412), (4630, 30194), (4870, 28706), (9260, 15097), (9740, 14353)]