28070900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{151}}^1$

素因数の和:202

約数の個数: 108

約数和(自身を含む): 72432864

約数和(自身を除く): 44361964

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 25, 26, 44, 50, 52, 55, 65, 100, 110, 130, 143, 151, 169, 220, 260, 275, 286, 302, 325, 338, 550, 572, 604, 650, 676, 715, 755, 845, 1100, 1300, 1430, 1510, 1661, 1690, 1859, 1963, 2860, 3020, 3322, 3380, 3575, 3718, 3775, 3926, 4225, 6644, 7150, 7436, 7550, 7852, 8305, 8450, 9295, 9815, 14300, 15100, 16610, 16900, 18590, 19630, 21593, 25519, 33220, 37180, 39260, 41525, 43186, 46475, 49075, 51038, 83050, 86372, 92950, 98150, 102076, 107965, 127595, 166100, 185900, 196300, 215930, 255190, 280709, 431860, 510380, 539825, 561418, 637975, 1079650, 1122836, 1275950, 1403545, 2159300, 2551900, 2807090, 5614180, 7017725, 14035450, 28070900]

約数ペア:

[(1, 28070900), (2, 14035450), (4, 7017725), (5, 5614180), (10, 2807090), (11, 2551900), (13, 2159300), (20, 1403545), (22, 1275950), (25, 1122836), (26, 1079650), (44, 637975), (50, 561418), (52, 539825), (55, 510380), (65, 431860), (100, 280709), (110, 255190), (130, 215930), (143, 196300), (151, 185900), (169, 166100), (220, 127595), (260, 107965), (275, 102076), (286, 98150), (302, 92950), (325, 86372), (338, 83050), (550, 51038), (572, 49075), (604, 46475), (650, 43186), (676, 41525), (715, 39260), (755, 37180), (845, 33220), (1100, 25519), (1300, 21593), (1430, 19630), (1510, 18590), (1661, 16900), (1690, 16610), (1859, 15100), (1963, 14300), (2860, 9815), (3020, 9295), (3322, 8450), (3380, 8305), (3575, 7852), (3718, 7550), (3775, 7436), (3926, 7150), (4225, 6644)]