68107720

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{271}}^1$

素因数の和:446

約数の個数: 64

約数和(自身を含む): 157847040

約数和(自身を除く): 89739320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 103, 122, 206, 244, 271, 305, 412, 488, 515, 542, 610, 824, 1030, 1084, 1220, 1355, 2060, 2168, 2440, 2710, 4120, 5420, 6283, 10840, 12566, 16531, 25132, 27913, 31415, 33062, 50264, 55826, 62830, 66124, 82655, 111652, 125660, 132248, 139565, 165310, 223304, 251320, 279130, 330620, 558260, 661240, 1116520, 1702693, 3405386, 6810772, 8513465, 13621544, 17026930, 34053860, 68107720]

約数ペア:

[(1, 68107720), (2, 34053860), (4, 17026930), (5, 13621544), (8, 8513465), (10, 6810772), (20, 3405386), (40, 1702693), (61, 1116520), (103, 661240), (122, 558260), (206, 330620), (244, 279130), (271, 251320), (305, 223304), (412, 165310), (488, 139565), (515, 132248), (542, 125660), (610, 111652), (824, 82655), (1030, 66124), (1084, 62830), (1220, 55826), (1355, 50264), (2060, 33062), (2168, 31415), (2440, 27913), (2710, 25132), (4120, 16531), (5420, 12566), (6283, 10840)]