765700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:77

約数の個数: 72

約数和(自身を含む): 1944320

約数和(自身を除く): 1178620

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 25, 26, 31, 38, 50, 52, 62, 65, 76, 95, 100, 124, 130, 155, 190, 247, 260, 310, 325, 380, 403, 475, 494, 589, 620, 650, 775, 806, 950, 988, 1178, 1235, 1300, 1550, 1612, 1900, 2015, 2356, 2470, 2945, 3100, 4030, 4940, 5890, 6175, 7657, 8060, 10075, 11780, 12350, 14725, 15314, 20150, 24700, 29450, 30628, 38285, 40300, 58900, 76570, 153140, 191425, 382850, 765700]

約数ペア:

[(1, 765700), (2, 382850), (4, 191425), (5, 153140), (10, 76570), (13, 58900), (19, 40300), (20, 38285), (25, 30628), (26, 29450), (31, 24700), (38, 20150), (50, 15314), (52, 14725), (62, 12350), (65, 11780), (76, 10075), (95, 8060), (100, 7657), (124, 6175), (130, 5890), (155, 4940), (190, 4030), (247, 3100), (260, 2945), (310, 2470), (325, 2356), (380, 2015), (403, 1900), (475, 1612), (494, 1550), (589, 1300), (620, 1235), (650, 1178), (775, 988), (806, 950)]