890496855

素因数分解:

$3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{389}}^1\times {\mathrm{547}}^1$

素因数の和:981

約数の個数: 64

約数和(自身を含む): 1641369600

約数和(自身を除く): 750872745

約数列:

[1, 3, 5, 9, 15, 27, 31, 45, 93, 135, 155, 279, 389, 465, 547, 837, 1167, 1395, 1641, 1945, 2735, 3501, 4185, 4923, 5835, 8205, 10503, 12059, 14769, 16957, 17505, 24615, 36177, 50871, 52515, 60295, 73845, 84785, 108531, 152613, 180885, 212783, 254355, 325593, 457839, 542655, 638349, 763065, 1063915, 1627965, 1915047, 2289195, 3191745, 5745141, 6596273, 9575235, 19788819, 28725705, 32981365, 59366457, 98944095, 178099371, 296832285, 890496855]

約数ペア:

[(1, 890496855), (3, 296832285), (5, 178099371), (9, 98944095), (15, 59366457), (27, 32981365), (31, 28725705), (45, 19788819), (93, 9575235), (135, 6596273), (155, 5745141), (279, 3191745), (389, 2289195), (465, 1915047), (547, 1627965), (837, 1063915), (1167, 763065), (1395, 638349), (1641, 542655), (1945, 457839), (2735, 325593), (3501, 254355), (4185, 212783), (4923, 180885), (5835, 152613), (8205, 108531), (10503, 84785), (12059, 73845), (14769, 60295), (16957, 52515), (17505, 50871), (24615, 36177)]