18521880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{383}}^1$

素因数の和:441

約数の個数: 128

約数和(自身を含む): 61931520

約数和(自身を除く): 43409640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 31, 39, 40, 52, 60, 62, 65, 78, 93, 104, 120, 124, 130, 155, 156, 186, 195, 248, 260, 310, 312, 372, 383, 390, 403, 465, 520, 620, 744, 766, 780, 806, 930, 1149, 1209, 1240, 1532, 1560, 1612, 1860, 1915, 2015, 2298, 2418, 3064, 3224, 3720, 3830, 4030, 4596, 4836, 4979, 5745, 6045, 7660, 8060, 9192, 9672, 9958, 11490, 11873, 12090, 14937, 15320, 16120, 19916, 22980, 23746, 24180, 24895, 29874, 35619, 39832, 45960, 47492, 48360, 49790, 59365, 59748, 71238, 74685, 94984, 99580, 118730, 119496, 142476, 149370, 154349, 178095, 199160, 237460, 284952, 298740, 308698, 356190, 463047, 474920, 597480, 617396, 712380, 771745, 926094, 1234792, 1424760, 1543490, 1852188, 2315235, 3086980, 3704376, 4630470, 6173960, 9260940, 18521880]

約数ペア:

[(1, 18521880), (2, 9260940), (3, 6173960), (4, 4630470), (5, 3704376), (6, 3086980), (8, 2315235), (10, 1852188), (12, 1543490), (13, 1424760), (15, 1234792), (20, 926094), (24, 771745), (26, 712380), (30, 617396), (31, 597480), (39, 474920), (40, 463047), (52, 356190), (60, 308698), (62, 298740), (65, 284952), (78, 237460), (93, 199160), (104, 178095), (120, 154349), (124, 149370), (130, 142476), (155, 119496), (156, 118730), (186, 99580), (195, 94984), (248, 74685), (260, 71238), (310, 59748), (312, 59365), (372, 49790), (383, 48360), (390, 47492), (403, 45960), (465, 39832), (520, 35619), (620, 29874), (744, 24895), (766, 24180), (780, 23746), (806, 22980), (930, 19916), (1149, 16120), (1209, 15320), (1240, 14937), (1532, 12090), (1560, 11873), (1612, 11490), (1860, 9958), (1915, 9672), (2015, 9192), (2298, 8060), (2418, 7660), (3064, 6045), (3224, 5745), (3720, 4979), (3830, 4836), (4030, 4596)]