27981990

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{2801}}^1$

素因数の和:2854

約数の個数: 64

約数和(自身を含む): 76662720

約数和(自身を除く): 48680730

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 37, 45, 54, 74, 90, 111, 135, 185, 222, 270, 333, 370, 555, 666, 999, 1110, 1665, 1998, 2801, 3330, 4995, 5602, 8403, 9990, 14005, 16806, 25209, 28010, 42015, 50418, 75627, 84030, 103637, 126045, 151254, 207274, 252090, 310911, 378135, 518185, 621822, 756270, 932733, 1036370, 1554555, 1865466, 2798199, 3109110, 4663665, 5596398, 9327330, 13990995, 27981990]

約数ペア:

[(1, 27981990), (2, 13990995), (3, 9327330), (5, 5596398), (6, 4663665), (9, 3109110), (10, 2798199), (15, 1865466), (18, 1554555), (27, 1036370), (30, 932733), (37, 756270), (45, 621822), (54, 518185), (74, 378135), (90, 310911), (111, 252090), (135, 207274), (185, 151254), (222, 126045), (270, 103637), (333, 84030), (370, 75627), (555, 50418), (666, 42015), (999, 28010), (1110, 25209), (1665, 16806), (1998, 14005), (2801, 9990), (3330, 8403), (4995, 5602)]