20402390680

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{277}}^1\times {\mathrm{37579}}^1$

素因数の和:37881

約数の個数: 96

約数和(自身を含む): 53594341200

約数和(自身を除く): 33191950520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 277, 280, 392, 490, 554, 980, 1108, 1385, 1939, 1960, 2216, 2770, 3878, 5540, 7756, 9695, 11080, 13573, 15512, 19390, 27146, 37579, 38780, 54292, 67865, 75158, 77560, 108584, 135730, 150316, 187895, 263053, 271460, 300632, 375790, 526106, 542920, 751580, 1052212, 1315265, 1503160, 1841371, 2104424, 2630530, 3682742, 5261060, 7365484, 9206855, 10409383, 10522120, 14730968, 18413710, 20818766, 36827420, 41637532, 52046915, 72865681, 73654840, 83275064, 104093830, 145731362, 208187660, 291462724, 364328405, 416375320, 510059767, 582925448, 728656810, 1020119534, 1457313620, 2040239068, 2550298835, 2914627240, 4080478136, 5100597670, 10201195340, 20402390680]

約数ペア:

[(1, 20402390680), (2, 10201195340), (4, 5100597670), (5, 4080478136), (7, 2914627240), (8, 2550298835), (10, 2040239068), (14, 1457313620), (20, 1020119534), (28, 728656810), (35, 582925448), (40, 510059767), (49, 416375320), (56, 364328405), (70, 291462724), (98, 208187660), (140, 145731362), (196, 104093830), (245, 83275064), (277, 73654840), (280, 72865681), (392, 52046915), (490, 41637532), (554, 36827420), (980, 20818766), (1108, 18413710), (1385, 14730968), (1939, 10522120), (1960, 10409383), (2216, 9206855), (2770, 7365484), (3878, 5261060), (5540, 3682742), (7756, 2630530), (9695, 2104424), (11080, 1841371), (13573, 1503160), (15512, 1315265), (19390, 1052212), (27146, 751580), (37579, 542920), (38780, 526106), (54292, 375790), (67865, 300632), (75158, 271460), (77560, 263053), (108584, 187895), (135730, 150316)]