1309100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1$

素因数の和:99

約数の個数: 72

約数和(自身を含む): 3281040

約数和(自身を除く): 1971940

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 25, 26, 38, 50, 52, 53, 65, 76, 95, 100, 106, 130, 190, 212, 247, 260, 265, 325, 380, 475, 494, 530, 650, 689, 950, 988, 1007, 1060, 1235, 1300, 1325, 1378, 1900, 2014, 2470, 2650, 2756, 3445, 4028, 4940, 5035, 5300, 6175, 6890, 10070, 12350, 13091, 13780, 17225, 20140, 24700, 25175, 26182, 34450, 50350, 52364, 65455, 68900, 100700, 130910, 261820, 327275, 654550, 1309100]

約数ペア:

[(1, 1309100), (2, 654550), (4, 327275), (5, 261820), (10, 130910), (13, 100700), (19, 68900), (20, 65455), (25, 52364), (26, 50350), (38, 34450), (50, 26182), (52, 25175), (53, 24700), (65, 20140), (76, 17225), (95, 13780), (100, 13091), (106, 12350), (130, 10070), (190, 6890), (212, 6175), (247, 5300), (260, 5035), (265, 4940), (325, 4028), (380, 3445), (475, 2756), (494, 2650), (530, 2470), (650, 2014), (689, 1900), (950, 1378), (988, 1325), (1007, 1300), (1060, 1235)]