420173840

素因数分解:

$2^4\times 5^1\times {\mathrm{461}}^1\times {\mathrm{11393}}^1$

素因数の和:11867

約数の個数: 40

約数和(自身を含む): 979109208

約数和(自身を除く): 558935368

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 461, 922, 1844, 2305, 3688, 4610, 7376, 9220, 11393, 18440, 22786, 36880, 45572, 56965, 91144, 113930, 182288, 227860, 455720, 911440, 5252173, 10504346, 21008692, 26260865, 42017384, 52521730, 84034768, 105043460, 210086920, 420173840]

約数ペア:

[(1, 420173840), (2, 210086920), (4, 105043460), (5, 84034768), (8, 52521730), (10, 42017384), (16, 26260865), (20, 21008692), (40, 10504346), (80, 5252173), (461, 911440), (922, 455720), (1844, 227860), (2305, 182288), (3688, 113930), (4610, 91144), (7376, 56965), (9220, 45572), (11393, 36880), (18440, 22786)]