2031051520

素因数分解:

$2^8\times 5^1\times {\mathrm{1231}}^1\times {\mathrm{1289}}^1$

素因数の和:2541

約数の個数: 72

約数和(自身を含む): 4872732480

約数和(自身を除く): 2841680960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1231, 1280, 1289, 2462, 2578, 4924, 5156, 6155, 6445, 9848, 10312, 12310, 12890, 19696, 20624, 24620, 25780, 39392, 41248, 49240, 51560, 78784, 82496, 98480, 103120, 157568, 164992, 196960, 206240, 315136, 329984, 393920, 412480, 787840, 824960, 1575680, 1586759, 1649920, 3173518, 6347036, 7933795, 12694072, 15867590, 25388144, 31735180, 50776288, 63470360, 101552576, 126940720, 203105152, 253881440, 406210304, 507762880, 1015525760, 2031051520]

約数ペア:

[(1, 2031051520), (2, 1015525760), (4, 507762880), (5, 406210304), (8, 253881440), (10, 203105152), (16, 126940720), (20, 101552576), (32, 63470360), (40, 50776288), (64, 31735180), (80, 25388144), (128, 15867590), (160, 12694072), (256, 7933795), (320, 6347036), (640, 3173518), (1231, 1649920), (1280, 1586759), (1289, 1575680), (2462, 824960), (2578, 787840), (4924, 412480), (5156, 393920), (6155, 329984), (6445, 315136), (9848, 206240), (10312, 196960), (12310, 164992), (12890, 157568), (19696, 103120), (20624, 98480), (24620, 82496), (25780, 78784), (39392, 51560), (41248, 49240)]