20145667240

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{907}}^1\times {\mathrm{9103}}^1$

素因数の和:10082

約数の個数: 64

約数和(自身を含む): 46126690560

約数和(自身を除く): 25981023320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 907, 1220, 1814, 2440, 3628, 4535, 7256, 9070, 9103, 18140, 18206, 36280, 36412, 45515, 55327, 72824, 91030, 110654, 182060, 221308, 276635, 364120, 442616, 553270, 555283, 1106540, 1110566, 2213080, 2221132, 2776415, 4442264, 5552830, 8256421, 11105660, 16512842, 22211320, 33025684, 41282105, 66051368, 82564210, 165128420, 330256840, 503641681, 1007283362, 2014566724, 2518208405, 4029133448, 5036416810, 10072833620, 20145667240]

約数ペア:

[(1, 20145667240), (2, 10072833620), (4, 5036416810), (5, 4029133448), (8, 2518208405), (10, 2014566724), (20, 1007283362), (40, 503641681), (61, 330256840), (122, 165128420), (244, 82564210), (305, 66051368), (488, 41282105), (610, 33025684), (907, 22211320), (1220, 16512842), (1814, 11105660), (2440, 8256421), (3628, 5552830), (4535, 4442264), (7256, 2776415), (9070, 2221132), (9103, 2213080), (18140, 1110566), (18206, 1106540), (36280, 555283), (36412, 553270), (45515, 442616), (55327, 364120), (72824, 276635), (91030, 221308), (110654, 182060)]