25877240

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{431}}^1$

素因数の和:540

約数の個数: 64

約数和(自身を含む): 62208000

約数和(自身を除く): 36330760

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 79, 95, 152, 158, 190, 316, 380, 395, 431, 632, 760, 790, 862, 1501, 1580, 1724, 2155, 3002, 3160, 3448, 4310, 6004, 7505, 8189, 8620, 12008, 15010, 16378, 17240, 30020, 32756, 34049, 40945, 60040, 65512, 68098, 81890, 136196, 163780, 170245, 272392, 327560, 340490, 646931, 680980, 1293862, 1361960, 2587724, 3234655, 5175448, 6469310, 12938620, 25877240]

約数ペア:

[(1, 25877240), (2, 12938620), (4, 6469310), (5, 5175448), (8, 3234655), (10, 2587724), (19, 1361960), (20, 1293862), (38, 680980), (40, 646931), (76, 340490), (79, 327560), (95, 272392), (152, 170245), (158, 163780), (190, 136196), (316, 81890), (380, 68098), (395, 65512), (431, 60040), (632, 40945), (760, 34049), (790, 32756), (862, 30020), (1501, 17240), (1580, 16378), (1724, 15010), (2155, 12008), (3002, 8620), (3160, 8189), (3448, 7505), (4310, 6004)]