81471225

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1$

素因数の和:235

約数の個数: 96

約数和(自身を含む): 160811136

約数和(自身を除く): 79339911

約数列:

[1, 3, 5, 11, 15, 17, 25, 33, 37, 51, 55, 75, 85, 111, 157, 165, 185, 187, 255, 275, 407, 425, 471, 555, 561, 629, 785, 825, 925, 935, 1221, 1275, 1727, 1887, 2035, 2355, 2669, 2775, 2805, 3145, 3925, 4675, 5181, 5809, 6105, 6919, 8007, 8635, 9435, 10175, 11775, 13345, 14025, 15725, 17427, 20757, 25905, 29045, 29359, 30525, 34595, 40035, 43175, 47175, 63899, 66725, 87135, 88077, 98753, 103785, 129525, 145225, 146795, 172975, 191697, 200175, 296259, 319495, 435675, 440385, 493765, 518925, 733975, 958485, 1086283, 1481295, 1597475, 2201925, 2468825, 3258849, 4792425, 5431415, 7406475, 16294245, 27157075, 81471225]

約数ペア:

[(1, 81471225), (3, 27157075), (5, 16294245), (11, 7406475), (15, 5431415), (17, 4792425), (25, 3258849), (33, 2468825), (37, 2201925), (51, 1597475), (55, 1481295), (75, 1086283), (85, 958485), (111, 733975), (157, 518925), (165, 493765), (185, 440385), (187, 435675), (255, 319495), (275, 296259), (407, 200175), (425, 191697), (471, 172975), (555, 146795), (561, 145225), (629, 129525), (785, 103785), (825, 98753), (925, 88077), (935, 87135), (1221, 66725), (1275, 63899), (1727, 47175), (1887, 43175), (2035, 40035), (2355, 34595), (2669, 30525), (2775, 29359), (2805, 29045), (3145, 25905), (3925, 20757), (4675, 17427), (5181, 15725), (5809, 14025), (6105, 13345), (6919, 11775), (8007, 10175), (8635, 9435)]