28078720

素因数分解:

$2^7\times 5^1\times {\mathrm{73}}^1\times {\mathrm{601}}^1$

素因数の和:693

約数の個数: 64

約数和(自身を含む): 68158440

約数和(自身を除く): 40079720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 73, 80, 128, 146, 160, 292, 320, 365, 584, 601, 640, 730, 1168, 1202, 1460, 2336, 2404, 2920, 3005, 4672, 4808, 5840, 6010, 9344, 9616, 11680, 12020, 19232, 23360, 24040, 38464, 43873, 46720, 48080, 76928, 87746, 96160, 175492, 192320, 219365, 350984, 384640, 438730, 701968, 877460, 1403936, 1754920, 2807872, 3509840, 5615744, 7019680, 14039360, 28078720]

約数ペア:

[(1, 28078720), (2, 14039360), (4, 7019680), (5, 5615744), (8, 3509840), (10, 2807872), (16, 1754920), (20, 1403936), (32, 877460), (40, 701968), (64, 438730), (73, 384640), (80, 350984), (128, 219365), (146, 192320), (160, 175492), (292, 96160), (320, 87746), (365, 76928), (584, 48080), (601, 46720), (640, 43873), (730, 38464), (1168, 24040), (1202, 23360), (1460, 19232), (2336, 12020), (2404, 11680), (2920, 9616), (3005, 9344), (4672, 6010), (4808, 5840)]