20822564

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{199}}^1$

素因数の和:348

約数の個数: 48

約数和(自身を含む): 43411200

約数和(自身を除く): 22588636

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 101, 148, 199, 202, 259, 398, 404, 518, 707, 796, 1036, 1393, 1414, 2786, 2828, 3737, 5572, 7363, 7474, 14726, 14948, 20099, 26159, 29452, 40198, 51541, 52318, 80396, 103082, 104636, 140693, 206164, 281386, 562772, 743663, 1487326, 2974652, 5205641, 10411282, 20822564]

約数ペア:

[(1, 20822564), (2, 10411282), (4, 5205641), (7, 2974652), (14, 1487326), (28, 743663), (37, 562772), (74, 281386), (101, 206164), (148, 140693), (199, 104636), (202, 103082), (259, 80396), (398, 52318), (404, 51541), (518, 40198), (707, 29452), (796, 26159), (1036, 20099), (1393, 14948), (1414, 14726), (2786, 7474), (2828, 7363), (3737, 5572)]