405698800

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1279}}^1$

素因数の和:1371

約数の個数: 120

約数和(自身を含む): 1067709440

約数和(自身を除く): 662010640

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 61, 65, 80, 100, 104, 122, 130, 200, 208, 244, 260, 305, 325, 400, 488, 520, 610, 650, 793, 976, 1040, 1220, 1279, 1300, 1525, 1586, 2440, 2558, 2600, 3050, 3172, 3965, 4880, 5116, 5200, 6100, 6344, 6395, 7930, 10232, 12200, 12688, 12790, 15860, 16627, 19825, 20464, 24400, 25580, 31720, 31975, 33254, 39650, 51160, 63440, 63950, 66508, 78019, 79300, 83135, 102320, 127900, 133016, 156038, 158600, 166270, 255800, 266032, 312076, 317200, 332540, 390095, 415675, 511600, 624152, 665080, 780190, 831350, 1014247, 1248304, 1330160, 1560380, 1662700, 1950475, 2028494, 3120760, 3325400, 3900950, 4056988, 5071235, 6241520, 6650800, 7801900, 8113976, 10142470, 15603800, 16227952, 20284940, 25356175, 31207600, 40569880, 50712350, 81139760, 101424700, 202849400, 405698800]

約数ペア:

[(1, 405698800), (2, 202849400), (4, 101424700), (5, 81139760), (8, 50712350), (10, 40569880), (13, 31207600), (16, 25356175), (20, 20284940), (25, 16227952), (26, 15603800), (40, 10142470), (50, 8113976), (52, 7801900), (61, 6650800), (65, 6241520), (80, 5071235), (100, 4056988), (104, 3900950), (122, 3325400), (130, 3120760), (200, 2028494), (208, 1950475), (244, 1662700), (260, 1560380), (305, 1330160), (325, 1248304), (400, 1014247), (488, 831350), (520, 780190), (610, 665080), (650, 624152), (793, 511600), (976, 415675), (1040, 390095), (1220, 332540), (1279, 317200), (1300, 312076), (1525, 266032), (1586, 255800), (2440, 166270), (2558, 158600), (2600, 156038), (3050, 133016), (3172, 127900), (3965, 102320), (4880, 83135), (5116, 79300), (5200, 78019), (6100, 66508), (6344, 63950), (6395, 63440), (7930, 51160), (10232, 39650), (12200, 33254), (12688, 31975), (12790, 31720), (15860, 25580), (16627, 24400), (19825, 20464)]