72071820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{431}}^1\times {\mathrm{929}}^1$

素因数の和:1375

約数の個数: 72

約数和(自身を含む): 219360960

約数和(自身を除く): 147289140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 431, 862, 929, 1293, 1724, 1858, 2155, 2586, 2787, 3716, 3879, 4310, 4645, 5172, 5574, 6465, 7758, 8361, 8620, 9290, 11148, 12930, 13935, 15516, 16722, 18580, 19395, 25860, 27870, 33444, 38790, 41805, 55740, 77580, 83610, 167220, 400399, 800798, 1201197, 1601596, 2001995, 2402394, 3603591, 4003990, 4804788, 6005985, 7207182, 8007980, 12011970, 14414364, 18017955, 24023940, 36035910, 72071820]

約数ペア:

[(1, 72071820), (2, 36035910), (3, 24023940), (4, 18017955), (5, 14414364), (6, 12011970), (9, 8007980), (10, 7207182), (12, 6005985), (15, 4804788), (18, 4003990), (20, 3603591), (30, 2402394), (36, 2001995), (45, 1601596), (60, 1201197), (90, 800798), (180, 400399), (431, 167220), (862, 83610), (929, 77580), (1293, 55740), (1724, 41805), (1858, 38790), (2155, 33444), (2586, 27870), (2787, 25860), (3716, 19395), (3879, 18580), (4310, 16722), (4645, 15516), (5172, 13935), (5574, 12930), (6465, 11148), (7758, 9290), (8361, 8620)]