15903855

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{89}}^1$

素因数の和:149

約数の個数: 72

約数和(自身を含む): 32095440

約数和(自身を除く): 16191585

約数列:

[1, 3, 5, 9, 11, 15, 19, 33, 45, 55, 57, 89, 95, 99, 165, 171, 209, 267, 285, 361, 445, 495, 627, 801, 855, 979, 1045, 1083, 1335, 1691, 1805, 1881, 2937, 3135, 3249, 3971, 4005, 4895, 5073, 5415, 8455, 8811, 9405, 11913, 14685, 15219, 16245, 18601, 19855, 25365, 32129, 35739, 44055, 55803, 59565, 76095, 93005, 96387, 160645, 167409, 178695, 279015, 289161, 353419, 481935, 837045, 1060257, 1445805, 1767095, 3180771, 5301285, 15903855]

約数ペア:

[(1, 15903855), (3, 5301285), (5, 3180771), (9, 1767095), (11, 1445805), (15, 1060257), (19, 837045), (33, 481935), (45, 353419), (55, 289161), (57, 279015), (89, 178695), (95, 167409), (99, 160645), (165, 96387), (171, 93005), (209, 76095), (267, 59565), (285, 55803), (361, 44055), (445, 35739), (495, 32129), (627, 25365), (801, 19855), (855, 18601), (979, 16245), (1045, 15219), (1083, 14685), (1335, 11913), (1691, 9405), (1805, 8811), (1881, 8455), (2937, 5415), (3135, 5073), (3249, 4895), (3971, 4005)]