1281291275

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{4493}}^1$

素因数の和:4592

約数の個数: 48

約数和(自身を含む): 1865693088

約数和(自身を除く): 584401813

約数列:

[1, 5, 11, 17, 25, 55, 61, 85, 187, 275, 305, 425, 671, 935, 1037, 1525, 3355, 4493, 4675, 5185, 11407, 16775, 22465, 25925, 49423, 57035, 76381, 112325, 247115, 274073, 285175, 381905, 840191, 1235575, 1370365, 1909525, 3014803, 4200955, 4659241, 6851825, 15074015, 21004775, 23296205, 51251651, 75370075, 116481025, 256258255, 1281291275]

約数ペア:

[(1, 1281291275), (5, 256258255), (11, 116481025), (17, 75370075), (25, 51251651), (55, 23296205), (61, 21004775), (85, 15074015), (187, 6851825), (275, 4659241), (305, 4200955), (425, 3014803), (671, 1909525), (935, 1370365), (1037, 1235575), (1525, 840191), (3355, 381905), (4493, 285175), (4675, 274073), (5185, 247115), (11407, 112325), (16775, 76381), (22465, 57035), (25925, 49423)]