128609560

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{3251}}^1$

素因数の和:3328

約数の個数: 64

約数和(自身を含む): 309070080

約数和(自身を除く): 180460520

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 43, 46, 86, 92, 115, 172, 184, 215, 230, 344, 430, 460, 860, 920, 989, 1720, 1978, 3251, 3956, 4945, 6502, 7912, 9890, 13004, 16255, 19780, 26008, 32510, 39560, 65020, 74773, 130040, 139793, 149546, 279586, 299092, 373865, 559172, 598184, 698965, 747730, 1118344, 1397930, 1495460, 2795860, 2990920, 3215239, 5591720, 6430478, 12860956, 16076195, 25721912, 32152390, 64304780, 128609560]

約数ペア:

[(1, 128609560), (2, 64304780), (4, 32152390), (5, 25721912), (8, 16076195), (10, 12860956), (20, 6430478), (23, 5591720), (40, 3215239), (43, 2990920), (46, 2795860), (86, 1495460), (92, 1397930), (115, 1118344), (172, 747730), (184, 698965), (215, 598184), (230, 559172), (344, 373865), (430, 299092), (460, 279586), (860, 149546), (920, 139793), (989, 130040), (1720, 74773), (1978, 65020), (3251, 39560), (3956, 32510), (4945, 26008), (6502, 19780), (7912, 16255), (9890, 13004)]