2141240

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{269}}^1$

素因数の和:479

約数の個数: 32

約数和(自身を含む): 4860000

約数和(自身を除く): 2718760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 269, 398, 538, 796, 995, 1076, 1345, 1592, 1990, 2152, 2690, 3980, 5380, 7960, 10760, 53531, 107062, 214124, 267655, 428248, 535310, 1070620, 2141240]

約数ペア:

[(1, 2141240), (2, 1070620), (4, 535310), (5, 428248), (8, 267655), (10, 214124), (20, 107062), (40, 53531), (199, 10760), (269, 7960), (398, 5380), (538, 3980), (796, 2690), (995, 2152), (1076, 1990), (1345, 1592)]