38438540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{643}}^1$

素因数の和:727

約数の個数: 72

約数和(自身を含む): 95587632

約数和(自身を除く): 57149092

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 61, 70, 98, 122, 140, 196, 244, 245, 305, 427, 490, 610, 643, 854, 980, 1220, 1286, 1708, 2135, 2572, 2989, 3215, 4270, 4501, 5978, 6430, 8540, 9002, 11956, 12860, 14945, 18004, 22505, 29890, 31507, 39223, 45010, 59780, 63014, 78446, 90020, 126028, 156892, 157535, 196115, 274561, 315070, 392230, 549122, 630140, 784460, 1098244, 1372805, 1921927, 2745610, 3843854, 5491220, 7687708, 9609635, 19219270, 38438540]

約数ペア:

[(1, 38438540), (2, 19219270), (4, 9609635), (5, 7687708), (7, 5491220), (10, 3843854), (14, 2745610), (20, 1921927), (28, 1372805), (35, 1098244), (49, 784460), (61, 630140), (70, 549122), (98, 392230), (122, 315070), (140, 274561), (196, 196115), (244, 157535), (245, 156892), (305, 126028), (427, 90020), (490, 78446), (610, 63014), (643, 59780), (854, 45010), (980, 39223), (1220, 31507), (1286, 29890), (1708, 22505), (2135, 18004), (2572, 14945), (2989, 12860), (3215, 11956), (4270, 9002), (4501, 8540), (5978, 6430)]