71745855

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:232

約数の個数: 64

約数和(自身を含む): 126904320

約数和(自身を除く): 55158465

約数列:

[1, 3, 5, 15, 23, 29, 69, 71, 87, 101, 115, 145, 213, 303, 345, 355, 435, 505, 667, 1065, 1515, 1633, 2001, 2059, 2323, 2929, 3335, 4899, 6177, 6969, 7171, 8165, 8787, 10005, 10295, 11615, 14645, 21513, 24495, 30885, 34845, 35855, 43935, 47357, 67367, 107565, 142071, 164933, 202101, 207959, 236785, 336835, 494799, 623877, 710355, 824665, 1010505, 1039795, 2473995, 3119385, 4783057, 14349171, 23915285, 71745855]

約数ペア:

[(1, 71745855), (3, 23915285), (5, 14349171), (15, 4783057), (23, 3119385), (29, 2473995), (69, 1039795), (71, 1010505), (87, 824665), (101, 710355), (115, 623877), (145, 494799), (213, 336835), (303, 236785), (345, 207959), (355, 202101), (435, 164933), (505, 142071), (667, 107565), (1065, 67367), (1515, 47357), (1633, 43935), (2001, 35855), (2059, 34845), (2323, 30885), (2929, 24495), (3335, 21513), (4899, 14645), (6177, 11615), (6969, 10295), (7171, 10005), (8165, 8787)]