173721015

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{431}}^1$

素因数の和:521

約数の個数: 72

約数和(自身を含む): 332983872

約数和(自身を除く): 159262857

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 53, 65, 117, 159, 169, 195, 265, 431, 477, 507, 585, 689, 795, 845, 1293, 1521, 2067, 2155, 2385, 2535, 3445, 3879, 5603, 6201, 6465, 7605, 8957, 10335, 16809, 19395, 22843, 26871, 28015, 31005, 44785, 50427, 68529, 72839, 80613, 84045, 114215, 134355, 205587, 218517, 252135, 296959, 342645, 364195, 403065, 655551, 890877, 1027935, 1092585, 1484795, 2672631, 3277755, 3860467, 4454385, 11581401, 13363155, 19302335, 34744203, 57907005, 173721015]

約数ペア:

[(1, 173721015), (3, 57907005), (5, 34744203), (9, 19302335), (13, 13363155), (15, 11581401), (39, 4454385), (45, 3860467), (53, 3277755), (65, 2672631), (117, 1484795), (159, 1092585), (169, 1027935), (195, 890877), (265, 655551), (431, 403065), (477, 364195), (507, 342645), (585, 296959), (689, 252135), (795, 218517), (845, 205587), (1293, 134355), (1521, 114215), (2067, 84045), (2155, 80613), (2385, 72839), (2535, 68529), (3445, 50427), (3879, 44785), (5603, 31005), (6201, 28015), (6465, 26871), (7605, 22843), (8957, 19395), (10335, 16809)]