18072040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1$

素因数の和:159

約数の個数: 128

約数和(自身を含む): 50688000

約数和(自身を除く): 32615960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 43, 56, 70, 76, 79, 86, 95, 133, 140, 152, 158, 172, 190, 215, 266, 280, 301, 316, 344, 380, 395, 430, 532, 553, 602, 632, 665, 760, 790, 817, 860, 1064, 1106, 1204, 1330, 1501, 1505, 1580, 1634, 1720, 2212, 2408, 2660, 2765, 3002, 3010, 3160, 3268, 3397, 4085, 4424, 5320, 5530, 5719, 6004, 6020, 6536, 6794, 7505, 8170, 10507, 11060, 11438, 12008, 12040, 13588, 15010, 16340, 16985, 21014, 22120, 22876, 23779, 27176, 28595, 30020, 32680, 33970, 42028, 45752, 47558, 52535, 57190, 60040, 64543, 67940, 84056, 95116, 105070, 114380, 118895, 129086, 135880, 190232, 210140, 228760, 237790, 258172, 322715, 420280, 451801, 475580, 516344, 645430, 903602, 951160, 1290860, 1807204, 2259005, 2581720, 3614408, 4518010, 9036020, 18072040]

約数ペア:

[(1, 18072040), (2, 9036020), (4, 4518010), (5, 3614408), (7, 2581720), (8, 2259005), (10, 1807204), (14, 1290860), (19, 951160), (20, 903602), (28, 645430), (35, 516344), (38, 475580), (40, 451801), (43, 420280), (56, 322715), (70, 258172), (76, 237790), (79, 228760), (86, 210140), (95, 190232), (133, 135880), (140, 129086), (152, 118895), (158, 114380), (172, 105070), (190, 95116), (215, 84056), (266, 67940), (280, 64543), (301, 60040), (316, 57190), (344, 52535), (380, 47558), (395, 45752), (430, 42028), (532, 33970), (553, 32680), (602, 30020), (632, 28595), (665, 27176), (760, 23779), (790, 22876), (817, 22120), (860, 21014), (1064, 16985), (1106, 16340), (1204, 15010), (1330, 13588), (1501, 12040), (1505, 12008), (1580, 11438), (1634, 11060), (1720, 10507), (2212, 8170), (2408, 7505), (2660, 6794), (2765, 6536), (3002, 6020), (3010, 6004), (3160, 5719), (3268, 5530), (3397, 5320), (4085, 4424)]