18486162680

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1\times {\mathrm{227}}^1\times {\mathrm{419}}^1$

素因数の和:813

約数の個数: 128

約数和(自身を含む): 43229894400

約数和(自身を除く): 24743731720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 113, 172, 215, 226, 227, 344, 419, 430, 452, 454, 565, 838, 860, 904, 908, 1130, 1135, 1676, 1720, 1816, 2095, 2260, 2270, 3352, 4190, 4520, 4540, 4859, 8380, 9080, 9718, 9761, 16760, 18017, 19436, 19522, 24295, 25651, 36034, 38872, 39044, 47347, 48590, 48805, 51302, 72068, 78088, 90085, 94694, 95113, 97180, 97610, 102604, 128255, 144136, 180170, 189388, 190226, 194360, 195220, 205208, 236735, 256510, 360340, 378776, 380452, 390440, 473470, 475565, 513020, 720680, 760904, 946940, 951130, 1026040, 1102993, 1893880, 1902260, 2035921, 2205986, 3804520, 4071842, 4089859, 4411972, 5514965, 8143684, 8179718, 8823944, 10179605, 10747769, 11029930, 16287368, 16359436, 20359210, 20449295, 21495538, 22059860, 32718872, 40718420, 40898590, 42991076, 44119720, 53738845, 81436840, 81797180, 85982152, 107477690, 163594360, 214955380, 429910760, 462154067, 924308134, 1848616268, 2310770335, 3697232536, 4621540670, 9243081340, 18486162680]

約数ペア:

[(1, 18486162680), (2, 9243081340), (4, 4621540670), (5, 3697232536), (8, 2310770335), (10, 1848616268), (20, 924308134), (40, 462154067), (43, 429910760), (86, 214955380), (113, 163594360), (172, 107477690), (215, 85982152), (226, 81797180), (227, 81436840), (344, 53738845), (419, 44119720), (430, 42991076), (452, 40898590), (454, 40718420), (565, 32718872), (838, 22059860), (860, 21495538), (904, 20449295), (908, 20359210), (1130, 16359436), (1135, 16287368), (1676, 11029930), (1720, 10747769), (1816, 10179605), (2095, 8823944), (2260, 8179718), (2270, 8143684), (3352, 5514965), (4190, 4411972), (4520, 4089859), (4540, 4071842), (4859, 3804520), (8380, 2205986), (9080, 2035921), (9718, 1902260), (9761, 1893880), (16760, 1102993), (18017, 1026040), (19436, 951130), (19522, 946940), (24295, 760904), (25651, 720680), (36034, 513020), (38872, 475565), (39044, 473470), (47347, 390440), (48590, 380452), (48805, 378776), (51302, 360340), (72068, 256510), (78088, 236735), (90085, 205208), (94694, 195220), (95113, 194360), (97180, 190226), (97610, 189388), (102604, 180170), (128255, 144136)]