1258288720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{509}}^1\times {\mathrm{2377}}^1$

素因数の和:2912

約数の個数: 80

約数和(自身を含む): 3158079120

約数和(自身を除く): 1899790400

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 509, 520, 1018, 1040, 2036, 2377, 2545, 4072, 4754, 5090, 6617, 8144, 9508, 10180, 11885, 13234, 19016, 20360, 23770, 26468, 30901, 33085, 38032, 40720, 47540, 52936, 61802, 66170, 95080, 105872, 123604, 132340, 154505, 190160, 247208, 264680, 309010, 494416, 529360, 618020, 1209893, 1236040, 2419786, 2472080, 4839572, 6049465, 9679144, 12098930, 15728609, 19358288, 24197860, 31457218, 48395720, 62914436, 78643045, 96791440, 125828872, 157286090, 251657744, 314572180, 629144360, 1258288720]

約数ペア:

[(1, 1258288720), (2, 629144360), (4, 314572180), (5, 251657744), (8, 157286090), (10, 125828872), (13, 96791440), (16, 78643045), (20, 62914436), (26, 48395720), (40, 31457218), (52, 24197860), (65, 19358288), (80, 15728609), (104, 12098930), (130, 9679144), (208, 6049465), (260, 4839572), (509, 2472080), (520, 2419786), (1018, 1236040), (1040, 1209893), (2036, 618020), (2377, 529360), (2545, 494416), (4072, 309010), (4754, 264680), (5090, 247208), (6617, 190160), (8144, 154505), (9508, 132340), (10180, 123604), (11885, 105872), (13234, 95080), (19016, 66170), (20360, 61802), (23770, 52936), (26468, 47540), (30901, 40720), (33085, 38032)]