31309850

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{151}}^1$

素因数の和:216

約数の個数: 96

約数和(自身を含む): 71245440

約数和(自身を除く): 39935590

約数列:

[1, 2, 5, 10, 11, 13, 22, 25, 26, 29, 50, 55, 58, 65, 110, 130, 143, 145, 151, 275, 286, 290, 302, 319, 325, 377, 550, 638, 650, 715, 725, 754, 755, 1430, 1450, 1510, 1595, 1661, 1885, 1963, 3190, 3322, 3575, 3770, 3775, 3926, 4147, 4379, 7150, 7550, 7975, 8294, 8305, 8758, 9425, 9815, 15950, 16610, 18850, 19630, 20735, 21593, 21895, 41470, 41525, 43186, 43790, 48169, 49075, 56927, 83050, 96338, 98150, 103675, 107965, 109475, 113854, 207350, 215930, 218950, 240845, 284635, 481690, 539825, 569270, 626197, 1079650, 1204225, 1252394, 1423175, 2408450, 2846350, 3130985, 6261970, 15654925, 31309850]

約数ペア:

[(1, 31309850), (2, 15654925), (5, 6261970), (10, 3130985), (11, 2846350), (13, 2408450), (22, 1423175), (25, 1252394), (26, 1204225), (29, 1079650), (50, 626197), (55, 569270), (58, 539825), (65, 481690), (110, 284635), (130, 240845), (143, 218950), (145, 215930), (151, 207350), (275, 113854), (286, 109475), (290, 107965), (302, 103675), (319, 98150), (325, 96338), (377, 83050), (550, 56927), (638, 49075), (650, 48169), (715, 43790), (725, 43186), (754, 41525), (755, 41470), (1430, 21895), (1450, 21593), (1510, 20735), (1595, 19630), (1661, 18850), (1885, 16610), (1963, 15950), (3190, 9815), (3322, 9425), (3575, 8758), (3770, 8305), (3775, 8294), (3926, 7975), (4147, 7550), (4379, 7150)]