42990280

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{191}}^1\times {\mathrm{331}}^1$

素因数の和:550

約数の個数: 64

約数和(自身を含む): 103265280

約数和(自身を除く): 60275000

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 191, 331, 340, 382, 662, 680, 764, 955, 1324, 1528, 1655, 1910, 2648, 3247, 3310, 3820, 5627, 6494, 6620, 7640, 11254, 12988, 13240, 16235, 22508, 25976, 28135, 32470, 45016, 56270, 63221, 64940, 112540, 126442, 129880, 225080, 252884, 316105, 505768, 632210, 1074757, 1264420, 2149514, 2528840, 4299028, 5373785, 8598056, 10747570, 21495140, 42990280]

約数ペア:

[(1, 42990280), (2, 21495140), (4, 10747570), (5, 8598056), (8, 5373785), (10, 4299028), (17, 2528840), (20, 2149514), (34, 1264420), (40, 1074757), (68, 632210), (85, 505768), (136, 316105), (170, 252884), (191, 225080), (331, 129880), (340, 126442), (382, 112540), (662, 64940), (680, 63221), (764, 56270), (955, 45016), (1324, 32470), (1528, 28135), (1655, 25976), (1910, 22508), (2648, 16235), (3247, 13240), (3310, 12988), (3820, 11254), (5627, 7640), (6494, 6620)]