28307808

素因数分解:

$2^5\times 3^2\times {\mathrm{227}}^1\times {\mathrm{433}}^1$

素因数の和:676

約数の個数: 72

約数和(自身を含む): 81041688

約数和(自身を除く): 52733880

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 227, 288, 433, 454, 681, 866, 908, 1299, 1362, 1732, 1816, 2043, 2598, 2724, 3464, 3632, 3897, 4086, 5196, 5448, 6928, 7264, 7794, 8172, 10392, 10896, 13856, 15588, 16344, 20784, 21792, 31176, 32688, 41568, 62352, 65376, 98291, 124704, 196582, 294873, 393164, 589746, 786328, 884619, 1179492, 1572656, 1769238, 2358984, 3145312, 3538476, 4717968, 7076952, 9435936, 14153904, 28307808]

約数ペア:

[(1, 28307808), (2, 14153904), (3, 9435936), (4, 7076952), (6, 4717968), (8, 3538476), (9, 3145312), (12, 2358984), (16, 1769238), (18, 1572656), (24, 1179492), (32, 884619), (36, 786328), (48, 589746), (72, 393164), (96, 294873), (144, 196582), (227, 124704), (288, 98291), (433, 65376), (454, 62352), (681, 41568), (866, 32688), (908, 31176), (1299, 21792), (1362, 20784), (1732, 16344), (1816, 15588), (2043, 13856), (2598, 10896), (2724, 10392), (3464, 8172), (3632, 7794), (3897, 7264), (4086, 6928), (5196, 5448)]