25749560

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1993}}^1$

素因数の和:2040

約数の個数: 64

約数和(自身を含む): 64605600

約数和(自身を除く): 38856040

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 34, 38, 40, 68, 76, 85, 95, 136, 152, 170, 190, 323, 340, 380, 646, 680, 760, 1292, 1615, 1993, 2584, 3230, 3986, 6460, 7972, 9965, 12920, 15944, 19930, 33881, 37867, 39860, 67762, 75734, 79720, 135524, 151468, 169405, 189335, 271048, 302936, 338810, 378670, 643739, 677620, 757340, 1287478, 1355240, 1514680, 2574956, 3218695, 5149912, 6437390, 12874780, 25749560]

約数ペア:

[(1, 25749560), (2, 12874780), (4, 6437390), (5, 5149912), (8, 3218695), (10, 2574956), (17, 1514680), (19, 1355240), (20, 1287478), (34, 757340), (38, 677620), (40, 643739), (68, 378670), (76, 338810), (85, 302936), (95, 271048), (136, 189335), (152, 169405), (170, 151468), (190, 135524), (323, 79720), (340, 75734), (380, 67762), (646, 39860), (680, 37867), (760, 33881), (1292, 19930), (1615, 15944), (1993, 12920), (2584, 9965), (3230, 7972), (3986, 6460)]