74879720

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1\times {\mathrm{409}}^1$

素因数の和:642

約数の個数: 64

約数和(自身を含む): 177120000

約数和(自身を除く): 102240280

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 199, 230, 398, 409, 460, 796, 818, 920, 995, 1592, 1636, 1990, 2045, 3272, 3980, 4090, 4577, 7960, 8180, 9154, 9407, 16360, 18308, 18814, 22885, 36616, 37628, 45770, 47035, 75256, 81391, 91540, 94070, 162782, 183080, 188140, 325564, 376280, 406955, 651128, 813910, 1627820, 1871993, 3255640, 3743986, 7487972, 9359965, 14975944, 18719930, 37439860, 74879720]

約数ペア:

[(1, 74879720), (2, 37439860), (4, 18719930), (5, 14975944), (8, 9359965), (10, 7487972), (20, 3743986), (23, 3255640), (40, 1871993), (46, 1627820), (92, 813910), (115, 651128), (184, 406955), (199, 376280), (230, 325564), (398, 188140), (409, 183080), (460, 162782), (796, 94070), (818, 91540), (920, 81391), (995, 75256), (1592, 47035), (1636, 45770), (1990, 37628), (2045, 36616), (3272, 22885), (3980, 18814), (4090, 18308), (4577, 16360), (7960, 9407), (8180, 9154)]