261040340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{2243}}^1$

素因数の和:2309

約数の個数: 72

約数和(自身を含む): 625429728

約数和(自身を除く): 364389388

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 220, 230, 253, 460, 506, 529, 1012, 1058, 1265, 2116, 2243, 2530, 2645, 4486, 5060, 5290, 5819, 8972, 10580, 11215, 11638, 22430, 23276, 24673, 29095, 44860, 49346, 51589, 58190, 98692, 103178, 116380, 123365, 206356, 246730, 257945, 493460, 515890, 567479, 1031780, 1134958, 1186547, 2269916, 2373094, 2837395, 4746188, 5674790, 5932735, 11349580, 11865470, 13052017, 23730940, 26104034, 52208068, 65260085, 130520170, 261040340]

約数ペア:

[(1, 261040340), (2, 130520170), (4, 65260085), (5, 52208068), (10, 26104034), (11, 23730940), (20, 13052017), (22, 11865470), (23, 11349580), (44, 5932735), (46, 5674790), (55, 4746188), (92, 2837395), (110, 2373094), (115, 2269916), (220, 1186547), (230, 1134958), (253, 1031780), (460, 567479), (506, 515890), (529, 493460), (1012, 257945), (1058, 246730), (1265, 206356), (2116, 123365), (2243, 116380), (2530, 103178), (2645, 98692), (4486, 58190), (5060, 51589), (5290, 49346), (5819, 44860), (8972, 29095), (10580, 24673), (11215, 23276), (11638, 22430)]