19503225

素因数分解:

$3^2\times 5^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{61}}^1$

素因数の和:120

約数の個数: 108

約数和(自身を含む): 42726060

約数和(自身を除く): 23222835

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 29, 35, 45, 49, 61, 63, 75, 87, 105, 145, 147, 175, 183, 203, 225, 245, 261, 305, 315, 427, 435, 441, 525, 549, 609, 725, 735, 915, 1015, 1225, 1281, 1305, 1421, 1525, 1575, 1769, 1827, 2135, 2175, 2205, 2745, 2989, 3045, 3675, 3843, 4263, 4575, 5075, 5307, 6405, 6525, 7105, 8845, 8967, 9135, 10675, 11025, 12383, 12789, 13725, 14945, 15225, 15921, 19215, 21315, 26535, 26901, 32025, 35525, 37149, 44225, 44835, 45675, 61915, 63945, 74725, 79605, 86681, 96075, 106575, 111447, 132675, 134505, 185745, 224175, 260043, 309575, 319725, 398025, 433405, 557235, 672525, 780129, 928725, 1300215, 2167025, 2786175, 3900645, 6501075, 19503225]

約数ペア:

[(1, 19503225), (3, 6501075), (5, 3900645), (7, 2786175), (9, 2167025), (15, 1300215), (21, 928725), (25, 780129), (29, 672525), (35, 557235), (45, 433405), (49, 398025), (61, 319725), (63, 309575), (75, 260043), (87, 224175), (105, 185745), (145, 134505), (147, 132675), (175, 111447), (183, 106575), (203, 96075), (225, 86681), (245, 79605), (261, 74725), (305, 63945), (315, 61915), (427, 45675), (435, 44835), (441, 44225), (525, 37149), (549, 35525), (609, 32025), (725, 26901), (735, 26535), (915, 21315), (1015, 19215), (1225, 15921), (1281, 15225), (1305, 14945), (1421, 13725), (1525, 12789), (1575, 12383), (1769, 11025), (1827, 10675), (2135, 9135), (2175, 8967), (2205, 8845), (2745, 7105), (2989, 6525), (3045, 6405), (3675, 5307), (3843, 5075), (4263, 4575)]