18966600

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{257}}^1$

素因数の和:320

約数の個数: 144

約数和(自身を含む): 65503620

約数和(自身を除く): 46537020

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 30, 36, 40, 41, 45, 50, 60, 72, 75, 82, 90, 100, 120, 123, 150, 164, 180, 200, 205, 225, 246, 257, 300, 328, 360, 369, 410, 450, 492, 514, 600, 615, 738, 771, 820, 900, 984, 1025, 1028, 1230, 1285, 1476, 1542, 1640, 1800, 1845, 2050, 2056, 2313, 2460, 2570, 2952, 3075, 3084, 3690, 3855, 4100, 4626, 4920, 5140, 6150, 6168, 6425, 7380, 7710, 8200, 9225, 9252, 10280, 10537, 11565, 12300, 12850, 14760, 15420, 18450, 18504, 19275, 21074, 23130, 24600, 25700, 30840, 31611, 36900, 38550, 42148, 46260, 51400, 52685, 57825, 63222, 73800, 77100, 84296, 92520, 94833, 105370, 115650, 126444, 154200, 158055, 189666, 210740, 231300, 252888, 263425, 316110, 379332, 421480, 462600, 474165, 526850, 632220, 758664, 790275, 948330, 1053700, 1264440, 1580550, 1896660, 2107400, 2370825, 3161100, 3793320, 4741650, 6322200, 9483300, 18966600]

約数ペア:

[(1, 18966600), (2, 9483300), (3, 6322200), (4, 4741650), (5, 3793320), (6, 3161100), (8, 2370825), (9, 2107400), (10, 1896660), (12, 1580550), (15, 1264440), (18, 1053700), (20, 948330), (24, 790275), (25, 758664), (30, 632220), (36, 526850), (40, 474165), (41, 462600), (45, 421480), (50, 379332), (60, 316110), (72, 263425), (75, 252888), (82, 231300), (90, 210740), (100, 189666), (120, 158055), (123, 154200), (150, 126444), (164, 115650), (180, 105370), (200, 94833), (205, 92520), (225, 84296), (246, 77100), (257, 73800), (300, 63222), (328, 57825), (360, 52685), (369, 51400), (410, 46260), (450, 42148), (492, 38550), (514, 36900), (600, 31611), (615, 30840), (738, 25700), (771, 24600), (820, 23130), (900, 21074), (984, 19275), (1025, 18504), (1028, 18450), (1230, 15420), (1285, 14760), (1476, 12850), (1542, 12300), (1640, 11565), (1800, 10537), (1845, 10280), (2050, 9252), (2056, 9225), (2313, 8200), (2460, 7710), (2570, 7380), (2952, 6425), (3075, 6168), (3084, 6150), (3690, 5140), (3855, 4920), (4100, 4626)]