28111545

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1$

素因数の和:116

約数の個数: 144

約数和(自身を含む): 66156480

約数和(自身を除く): 38044935

約数列:

[1, 3, 5, 7, 9, 11, 15, 19, 21, 33, 35, 45, 49, 55, 57, 61, 63, 77, 95, 99, 105, 133, 147, 165, 171, 183, 209, 231, 245, 285, 305, 315, 385, 399, 427, 441, 495, 539, 549, 627, 665, 671, 693, 735, 855, 915, 931, 1045, 1155, 1159, 1197, 1281, 1463, 1617, 1881, 1995, 2013, 2135, 2205, 2695, 2745, 2793, 2989, 3135, 3355, 3465, 3477, 3843, 4389, 4655, 4697, 4851, 5795, 5985, 6039, 6405, 7315, 8085, 8113, 8379, 8967, 9405, 10065, 10241, 10431, 12749, 13167, 13965, 14091, 14945, 17385, 19215, 21945, 23485, 24255, 24339, 26901, 30195, 30723, 32879, 38247, 40565, 41895, 42273, 44835, 51205, 52155, 56791, 63745, 65835, 70455, 73017, 89243, 92169, 98637, 114741, 121695, 134505, 153615, 164395, 170373, 191235, 211365, 267729, 283955, 295911, 365085, 446215, 460845, 493185, 511119, 573705, 624701, 803187, 851865, 1338645, 1479555, 1874103, 2555595, 3123505, 4015935, 5622309, 9370515, 28111545]

約数ペア:

[(1, 28111545), (3, 9370515), (5, 5622309), (7, 4015935), (9, 3123505), (11, 2555595), (15, 1874103), (19, 1479555), (21, 1338645), (33, 851865), (35, 803187), (45, 624701), (49, 573705), (55, 511119), (57, 493185), (61, 460845), (63, 446215), (77, 365085), (95, 295911), (99, 283955), (105, 267729), (133, 211365), (147, 191235), (165, 170373), (171, 164395), (183, 153615), (209, 134505), (231, 121695), (245, 114741), (285, 98637), (305, 92169), (315, 89243), (385, 73017), (399, 70455), (427, 65835), (441, 63745), (495, 56791), (539, 52155), (549, 51205), (627, 44835), (665, 42273), (671, 41895), (693, 40565), (735, 38247), (855, 32879), (915, 30723), (931, 30195), (1045, 26901), (1155, 24339), (1159, 24255), (1197, 23485), (1281, 21945), (1463, 19215), (1617, 17385), (1881, 14945), (1995, 14091), (2013, 13965), (2135, 13167), (2205, 12749), (2695, 10431), (2745, 10241), (2793, 10065), (2989, 9405), (3135, 8967), (3355, 8379), (3465, 8113), (3477, 8085), (3843, 7315), (4389, 6405), (4655, 6039), (4697, 5985), (4851, 5795)]