39742720

素因数分解:

$2^8\times 5^1\times {\mathrm{61}}^1\times {\mathrm{509}}^1$

素因数の和:591

約数の個数: 72

約数和(自身を含む): 96946920

約数和(自身を除く): 57204200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 128, 160, 244, 256, 305, 320, 488, 509, 610, 640, 976, 1018, 1220, 1280, 1952, 2036, 2440, 2545, 3904, 4072, 4880, 5090, 7808, 8144, 9760, 10180, 15616, 16288, 19520, 20360, 31049, 32576, 39040, 40720, 62098, 65152, 78080, 81440, 124196, 130304, 155245, 162880, 248392, 310490, 325760, 496784, 620980, 651520, 993568, 1241960, 1987136, 2483920, 3974272, 4967840, 7948544, 9935680, 19871360, 39742720]

約数ペア:

[(1, 39742720), (2, 19871360), (4, 9935680), (5, 7948544), (8, 4967840), (10, 3974272), (16, 2483920), (20, 1987136), (32, 1241960), (40, 993568), (61, 651520), (64, 620980), (80, 496784), (122, 325760), (128, 310490), (160, 248392), (244, 162880), (256, 155245), (305, 130304), (320, 124196), (488, 81440), (509, 78080), (610, 65152), (640, 62098), (976, 40720), (1018, 39040), (1220, 32576), (1280, 31049), (1952, 20360), (2036, 19520), (2440, 16288), (2545, 15616), (3904, 10180), (4072, 9760), (4880, 8144), (5090, 7808)]