152643640

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{1999}}^1$

素因数の和:2116

約数の個数: 64

約数和(自身を含む): 362880000

約数和(自身を除く): 210236360

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 83, 92, 115, 166, 184, 230, 332, 415, 460, 664, 830, 920, 1660, 1909, 1999, 3320, 3818, 3998, 7636, 7996, 9545, 9995, 15272, 15992, 19090, 19990, 38180, 39980, 45977, 76360, 79960, 91954, 165917, 183908, 229885, 331834, 367816, 459770, 663668, 829585, 919540, 1327336, 1659170, 1839080, 3318340, 3816091, 6636680, 7632182, 15264364, 19080455, 30528728, 38160910, 76321820, 152643640]

約数ペア:

[(1, 152643640), (2, 76321820), (4, 38160910), (5, 30528728), (8, 19080455), (10, 15264364), (20, 7632182), (23, 6636680), (40, 3816091), (46, 3318340), (83, 1839080), (92, 1659170), (115, 1327336), (166, 919540), (184, 829585), (230, 663668), (332, 459770), (415, 367816), (460, 331834), (664, 229885), (830, 183908), (920, 165917), (1660, 91954), (1909, 79960), (1999, 76360), (3320, 45977), (3818, 39980), (3998, 38180), (7636, 19990), (7996, 19090), (9545, 15992), (9995, 15272)]