18379720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{179}}^1$

素因数の和:358

約数の個数: 64

約数和(自身を含む): 44323200

約数和(自身を除く): 25943480

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 151, 170, 179, 302, 340, 358, 604, 680, 716, 755, 895, 1208, 1432, 1510, 1790, 2567, 3020, 3043, 3580, 5134, 6040, 6086, 7160, 10268, 12172, 12835, 15215, 20536, 24344, 25670, 27029, 30430, 51340, 54058, 60860, 102680, 108116, 121720, 135145, 216232, 270290, 459493, 540580, 918986, 1081160, 1837972, 2297465, 3675944, 4594930, 9189860, 18379720]

約数ペア:

[(1, 18379720), (2, 9189860), (4, 4594930), (5, 3675944), (8, 2297465), (10, 1837972), (17, 1081160), (20, 918986), (34, 540580), (40, 459493), (68, 270290), (85, 216232), (136, 135145), (151, 121720), (170, 108116), (179, 102680), (302, 60860), (340, 54058), (358, 51340), (604, 30430), (680, 27029), (716, 25670), (755, 24344), (895, 20536), (1208, 15215), (1432, 12835), (1510, 12172), (1790, 10268), (2567, 7160), (3020, 6086), (3043, 6040), (3580, 5134)]