20731034860

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2161}}^1\times {\mathrm{15473}}^1$

素因数の和:17674

約数の個数: 48

約数和(自身を含む): 44963235072

約数和(自身を除く): 24232200212

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 2161, 4322, 8644, 10805, 15473, 21610, 30946, 43220, 61892, 66991, 77365, 133982, 154730, 267964, 309460, 334955, 479663, 669910, 959326, 1339820, 1918652, 2398315, 4796630, 9593260, 33437153, 66874306, 133748612, 167185765, 334371530, 668743060, 1036551743, 2073103486, 4146206972, 5182758715, 10365517430, 20731034860]

約数ペア:

[(1, 20731034860), (2, 10365517430), (4, 5182758715), (5, 4146206972), (10, 2073103486), (20, 1036551743), (31, 668743060), (62, 334371530), (124, 167185765), (155, 133748612), (310, 66874306), (620, 33437153), (2161, 9593260), (4322, 4796630), (8644, 2398315), (10805, 1918652), (15473, 1339820), (21610, 959326), (30946, 669910), (43220, 479663), (61892, 334955), (66991, 309460), (77365, 267964), (133982, 154730)]