81754020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{26717}}^1$

素因数の和:26749

約数の個数: 72

約数和(自身を含む): 262584504

約数和(自身を除く): 180830484

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 85, 90, 102, 153, 170, 180, 204, 255, 306, 340, 510, 612, 765, 1020, 1530, 3060, 26717, 53434, 80151, 106868, 133585, 160302, 240453, 267170, 320604, 400755, 454189, 480906, 534340, 801510, 908378, 961812, 1202265, 1362567, 1603020, 1816756, 2270945, 2404530, 2725134, 4087701, 4541890, 4809060, 5450268, 6812835, 8175402, 9083780, 13625670, 16350804, 20438505, 27251340, 40877010, 81754020]

約数ペア:

[(1, 81754020), (2, 40877010), (3, 27251340), (4, 20438505), (5, 16350804), (6, 13625670), (9, 9083780), (10, 8175402), (12, 6812835), (15, 5450268), (17, 4809060), (18, 4541890), (20, 4087701), (30, 2725134), (34, 2404530), (36, 2270945), (45, 1816756), (51, 1603020), (60, 1362567), (68, 1202265), (85, 961812), (90, 908378), (102, 801510), (153, 534340), (170, 480906), (180, 454189), (204, 400755), (255, 320604), (306, 267170), (340, 240453), (510, 160302), (612, 133585), (765, 106868), (1020, 80151), (1530, 53434), (3060, 26717)]