81407916

素因数分解:

$2^2\times 3^5\times {\mathrm{61}}^1\times {\mathrm{1373}}^1$

素因数の和:1453

約数の個数: 72

約数和(自身を含む): 217059024

約数和(自身を除く): 135651108

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 61, 81, 108, 122, 162, 183, 243, 244, 324, 366, 486, 549, 732, 972, 1098, 1373, 1647, 2196, 2746, 3294, 4119, 4941, 5492, 6588, 8238, 9882, 12357, 14823, 16476, 19764, 24714, 29646, 37071, 49428, 59292, 74142, 83753, 111213, 148284, 167506, 222426, 251259, 333639, 335012, 444852, 502518, 667278, 753777, 1005036, 1334556, 1507554, 2261331, 3015108, 4522662, 6783993, 9045324, 13567986, 20351979, 27135972, 40703958, 81407916]

約数ペア:

[(1, 81407916), (2, 40703958), (3, 27135972), (4, 20351979), (6, 13567986), (9, 9045324), (12, 6783993), (18, 4522662), (27, 3015108), (36, 2261331), (54, 1507554), (61, 1334556), (81, 1005036), (108, 753777), (122, 667278), (162, 502518), (183, 444852), (243, 335012), (244, 333639), (324, 251259), (366, 222426), (486, 167506), (549, 148284), (732, 111213), (972, 83753), (1098, 74142), (1373, 59292), (1647, 49428), (2196, 37071), (2746, 29646), (3294, 24714), (4119, 19764), (4941, 16476), (5492, 14823), (6588, 12357), (8238, 9882)]