20421974760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{449}}^1\times {\mathrm{34457}}^1$

素因数の和:34931

約数の個数: 128

約数和(自身を含む): 66986352000

約数和(自身を除く): 46564377240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 264, 330, 440, 449, 660, 898, 1320, 1347, 1796, 2245, 2694, 3592, 4490, 4939, 5388, 6735, 8980, 9878, 10776, 13470, 14817, 17960, 19756, 24695, 26940, 29634, 34457, 39512, 49390, 53880, 59268, 68914, 74085, 98780, 103371, 118536, 137828, 148170, 172285, 197560, 206742, 275656, 296340, 344570, 379027, 413484, 516855, 592680, 689140, 758054, 826968, 1033710, 1137081, 1378280, 1516108, 1895135, 2067420, 2274162, 3032216, 3790270, 4134840, 4548324, 5685405, 7580540, 9096648, 11370810, 15161080, 15471193, 22741620, 30942386, 45483240, 46413579, 61884772, 77355965, 92827158, 123769544, 154711930, 170183123, 185654316, 232067895, 309423860, 340366246, 371308632, 464135790, 510549369, 618847720, 680732492, 850915615, 928271580, 1021098738, 1361464984, 1701831230, 1856543160, 2042197476, 2552746845, 3403662460, 4084394952, 5105493690, 6807324920, 10210987380, 20421974760]

約数ペア:

[(1, 20421974760), (2, 10210987380), (3, 6807324920), (4, 5105493690), (5, 4084394952), (6, 3403662460), (8, 2552746845), (10, 2042197476), (11, 1856543160), (12, 1701831230), (15, 1361464984), (20, 1021098738), (22, 928271580), (24, 850915615), (30, 680732492), (33, 618847720), (40, 510549369), (44, 464135790), (55, 371308632), (60, 340366246), (66, 309423860), (88, 232067895), (110, 185654316), (120, 170183123), (132, 154711930), (165, 123769544), (220, 92827158), (264, 77355965), (330, 61884772), (440, 46413579), (449, 45483240), (660, 30942386), (898, 22741620), (1320, 15471193), (1347, 15161080), (1796, 11370810), (2245, 9096648), (2694, 7580540), (3592, 5685405), (4490, 4548324), (4939, 4134840), (5388, 3790270), (6735, 3032216), (8980, 2274162), (9878, 2067420), (10776, 1895135), (13470, 1516108), (14817, 1378280), (17960, 1137081), (19756, 1033710), (24695, 826968), (26940, 758054), (29634, 689140), (34457, 592680), (39512, 516855), (49390, 413484), (53880, 379027), (59268, 344570), (68914, 296340), (74085, 275656), (98780, 206742), (103371, 197560), (118536, 172285), (137828, 148170)]