78160900

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1999}}^1$

素因数の和:2053

約数の個数: 72

約数和(自身を含む): 187488000

約数和(自身を除く): 109327100

約数列:

[1, 2, 4, 5, 10, 17, 20, 23, 25, 34, 46, 50, 68, 85, 92, 100, 115, 170, 230, 340, 391, 425, 460, 575, 782, 850, 1150, 1564, 1700, 1955, 1999, 2300, 3910, 3998, 7820, 7996, 9775, 9995, 19550, 19990, 33983, 39100, 39980, 45977, 49975, 67966, 91954, 99950, 135932, 169915, 183908, 199900, 229885, 339830, 459770, 679660, 781609, 849575, 919540, 1149425, 1563218, 1699150, 2298850, 3126436, 3398300, 3908045, 4597700, 7816090, 15632180, 19540225, 39080450, 78160900]

約数ペア:

[(1, 78160900), (2, 39080450), (4, 19540225), (5, 15632180), (10, 7816090), (17, 4597700), (20, 3908045), (23, 3398300), (25, 3126436), (34, 2298850), (46, 1699150), (50, 1563218), (68, 1149425), (85, 919540), (92, 849575), (100, 781609), (115, 679660), (170, 459770), (230, 339830), (340, 229885), (391, 199900), (425, 183908), (460, 169915), (575, 135932), (782, 99950), (850, 91954), (1150, 67966), (1564, 49975), (1700, 45977), (1955, 39980), (1999, 39100), (2300, 33983), (3910, 19990), (3998, 19550), (7820, 9995), (7996, 9775)]