289227640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{5507}}^1$

素因数の和:5632

約数の個数: 64

約数和(自身を含む): 707888160

約数和(自身を除く): 418660520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 101, 104, 130, 202, 260, 404, 505, 520, 808, 1010, 1313, 2020, 2626, 4040, 5252, 5507, 6565, 10504, 11014, 13130, 22028, 26260, 27535, 44056, 52520, 55070, 71591, 110140, 143182, 220280, 286364, 357955, 556207, 572728, 715910, 1112414, 1431820, 2224828, 2781035, 2863640, 4449656, 5562070, 7230691, 11124140, 14461382, 22248280, 28922764, 36153455, 57845528, 72306910, 144613820, 289227640]

約数ペア:

[(1, 289227640), (2, 144613820), (4, 72306910), (5, 57845528), (8, 36153455), (10, 28922764), (13, 22248280), (20, 14461382), (26, 11124140), (40, 7230691), (52, 5562070), (65, 4449656), (101, 2863640), (104, 2781035), (130, 2224828), (202, 1431820), (260, 1112414), (404, 715910), (505, 572728), (520, 556207), (808, 357955), (1010, 286364), (1313, 220280), (2020, 143182), (2626, 110140), (4040, 71591), (5252, 55070), (5507, 52520), (6565, 44056), (10504, 27535), (11014, 26260), (13130, 22028)]