28209440

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{283}}^1$

素因数の和:394

約数の個数: 96

約数和(自身を含む): 77293440

約数和(自身を除く): 49084000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 89, 112, 140, 160, 178, 224, 280, 283, 356, 445, 560, 566, 623, 712, 890, 1120, 1132, 1246, 1415, 1424, 1780, 1981, 2264, 2492, 2830, 2848, 3115, 3560, 3962, 4528, 4984, 5660, 6230, 7120, 7924, 9056, 9905, 9968, 11320, 12460, 14240, 15848, 19810, 19936, 22640, 24920, 25187, 31696, 39620, 45280, 49840, 50374, 63392, 79240, 99680, 100748, 125935, 158480, 176309, 201496, 251870, 316960, 352618, 402992, 503740, 705236, 805984, 881545, 1007480, 1410472, 1763090, 2014960, 2820944, 3526180, 4029920, 5641888, 7052360, 14104720, 28209440]

約数ペア:

[(1, 28209440), (2, 14104720), (4, 7052360), (5, 5641888), (7, 4029920), (8, 3526180), (10, 2820944), (14, 2014960), (16, 1763090), (20, 1410472), (28, 1007480), (32, 881545), (35, 805984), (40, 705236), (56, 503740), (70, 402992), (80, 352618), (89, 316960), (112, 251870), (140, 201496), (160, 176309), (178, 158480), (224, 125935), (280, 100748), (283, 99680), (356, 79240), (445, 63392), (560, 50374), (566, 49840), (623, 45280), (712, 39620), (890, 31696), (1120, 25187), (1132, 24920), (1246, 22640), (1415, 19936), (1424, 19810), (1780, 15848), (1981, 14240), (2264, 12460), (2492, 11320), (2830, 9968), (2848, 9905), (3115, 9056), (3560, 7924), (3962, 7120), (4528, 6230), (4984, 5660)]