841791975

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^2\times {\mathrm{71}}^1\times {\mathrm{547}}^1$

素因数の和:665

約数の個数: 72

約数和(自身を含む): 1502011008

約数和(自身を除く): 660219033

約数列:

[1, 3, 5, 15, 17, 25, 51, 71, 75, 85, 213, 255, 289, 355, 425, 547, 867, 1065, 1207, 1275, 1445, 1641, 1775, 2735, 3621, 4335, 5325, 6035, 7225, 8205, 9299, 13675, 18105, 20519, 21675, 27897, 30175, 38837, 41025, 46495, 61557, 90525, 102595, 116511, 139485, 158083, 194185, 232475, 307785, 474249, 512975, 582555, 660229, 697425, 790415, 970925, 1538925, 1980687, 2371245, 2912775, 3301145, 3952075, 9903435, 11223893, 11856225, 16505725, 33671679, 49517175, 56119465, 168358395, 280597325, 841791975]

約数ペア:

[(1, 841791975), (3, 280597325), (5, 168358395), (15, 56119465), (17, 49517175), (25, 33671679), (51, 16505725), (71, 11856225), (75, 11223893), (85, 9903435), (213, 3952075), (255, 3301145), (289, 2912775), (355, 2371245), (425, 1980687), (547, 1538925), (867, 970925), (1065, 790415), (1207, 697425), (1275, 660229), (1445, 582555), (1641, 512975), (1775, 474249), (2735, 307785), (3621, 232475), (4335, 194185), (5325, 158083), (6035, 139485), (7225, 116511), (8205, 102595), (9299, 90525), (13675, 61557), (18105, 46495), (20519, 41025), (21675, 38837), (27897, 30175)]