27840810

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{257}}^1$

素因数の和:447

約数の個数: 64

約数和(自身を含む): 70440192

約数和(自身を除く): 42599382

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 157, 230, 257, 314, 345, 471, 514, 690, 771, 785, 942, 1285, 1542, 1570, 2355, 2570, 3611, 3855, 4710, 5911, 7222, 7710, 10833, 11822, 17733, 18055, 21666, 29555, 35466, 36110, 40349, 54165, 59110, 80698, 88665, 108330, 121047, 177330, 201745, 242094, 403490, 605235, 928027, 1210470, 1856054, 2784081, 4640135, 5568162, 9280270, 13920405, 27840810]

約数ペア:

[(1, 27840810), (2, 13920405), (3, 9280270), (5, 5568162), (6, 4640135), (10, 2784081), (15, 1856054), (23, 1210470), (30, 928027), (46, 605235), (69, 403490), (115, 242094), (138, 201745), (157, 177330), (230, 121047), (257, 108330), (314, 88665), (345, 80698), (471, 59110), (514, 54165), (690, 40349), (771, 36110), (785, 35466), (942, 29555), (1285, 21666), (1542, 18055), (1570, 17733), (2355, 11822), (2570, 10833), (3611, 7710), (3855, 7222), (4710, 5911)]