18331320

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{157}}^1$

素因数の和:317

約数の個数: 128

約数和(自身を含む): 63705600

約数和(自身を除く): 45374280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 139, 140, 157, 168, 210, 278, 280, 314, 417, 420, 471, 556, 628, 695, 785, 834, 840, 942, 973, 1099, 1112, 1256, 1390, 1570, 1668, 1884, 1946, 2085, 2198, 2355, 2780, 2919, 3140, 3297, 3336, 3768, 3892, 4170, 4396, 4710, 4865, 5495, 5560, 5838, 6280, 6594, 7784, 8340, 8792, 9420, 9730, 10990, 11676, 13188, 14595, 16485, 16680, 18840, 19460, 21823, 21980, 23352, 26376, 29190, 32970, 38920, 43646, 43960, 58380, 65469, 65940, 87292, 109115, 116760, 130938, 131880, 152761, 174584, 218230, 261876, 305522, 327345, 436460, 458283, 523752, 611044, 654690, 763805, 872920, 916566, 1222088, 1309380, 1527610, 1833132, 2291415, 2618760, 3055220, 3666264, 4582830, 6110440, 9165660, 18331320]

約数ペア:

[(1, 18331320), (2, 9165660), (3, 6110440), (4, 4582830), (5, 3666264), (6, 3055220), (7, 2618760), (8, 2291415), (10, 1833132), (12, 1527610), (14, 1309380), (15, 1222088), (20, 916566), (21, 872920), (24, 763805), (28, 654690), (30, 611044), (35, 523752), (40, 458283), (42, 436460), (56, 327345), (60, 305522), (70, 261876), (84, 218230), (105, 174584), (120, 152761), (139, 131880), (140, 130938), (157, 116760), (168, 109115), (210, 87292), (278, 65940), (280, 65469), (314, 58380), (417, 43960), (420, 43646), (471, 38920), (556, 32970), (628, 29190), (695, 26376), (785, 23352), (834, 21980), (840, 21823), (942, 19460), (973, 18840), (1099, 16680), (1112, 16485), (1256, 14595), (1390, 13188), (1570, 11676), (1668, 10990), (1884, 9730), (1946, 9420), (2085, 8792), (2198, 8340), (2355, 7784), (2780, 6594), (2919, 6280), (3140, 5838), (3297, 5560), (3336, 5495), (3768, 4865), (3892, 4710), (4170, 4396)]