28639360

素因数分解:

$2^7\times 5^1\times {\mathrm{73}}^1\times {\mathrm{613}}^1$

素因数の和:705

約数の個数: 64

約数和(自身を含む): 69517080

約数和(自身を除く): 40877720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 73, 80, 128, 146, 160, 292, 320, 365, 584, 613, 640, 730, 1168, 1226, 1460, 2336, 2452, 2920, 3065, 4672, 4904, 5840, 6130, 9344, 9808, 11680, 12260, 19616, 23360, 24520, 39232, 44749, 46720, 49040, 78464, 89498, 98080, 178996, 196160, 223745, 357992, 392320, 447490, 715984, 894980, 1431968, 1789960, 2863936, 3579920, 5727872, 7159840, 14319680, 28639360]

約数ペア:

[(1, 28639360), (2, 14319680), (4, 7159840), (5, 5727872), (8, 3579920), (10, 2863936), (16, 1789960), (20, 1431968), (32, 894980), (40, 715984), (64, 447490), (73, 392320), (80, 357992), (128, 223745), (146, 196160), (160, 178996), (292, 98080), (320, 89498), (365, 78464), (584, 49040), (613, 46720), (640, 44749), (730, 39232), (1168, 24520), (1226, 23360), (1460, 19616), (2336, 12260), (2452, 11680), (2920, 9808), (3065, 9344), (4672, 6130), (4904, 5840)]