25157080

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{479}}^1$

素因数の和:604

約数の個数: 64

約数和(自身を含む): 61689600

約数和(自身を除く): 36532520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 101, 104, 130, 202, 260, 404, 479, 505, 520, 808, 958, 1010, 1313, 1916, 2020, 2395, 2626, 3832, 4040, 4790, 5252, 6227, 6565, 9580, 10504, 12454, 13130, 19160, 24908, 26260, 31135, 48379, 49816, 52520, 62270, 96758, 124540, 193516, 241895, 249080, 387032, 483790, 628927, 967580, 1257854, 1935160, 2515708, 3144635, 5031416, 6289270, 12578540, 25157080]

約数ペア:

[(1, 25157080), (2, 12578540), (4, 6289270), (5, 5031416), (8, 3144635), (10, 2515708), (13, 1935160), (20, 1257854), (26, 967580), (40, 628927), (52, 483790), (65, 387032), (101, 249080), (104, 241895), (130, 193516), (202, 124540), (260, 96758), (404, 62270), (479, 52520), (505, 49816), (520, 48379), (808, 31135), (958, 26260), (1010, 24908), (1313, 19160), (1916, 13130), (2020, 12454), (2395, 10504), (2626, 9580), (3832, 6565), (4040, 6227), (4790, 5252)]