19951540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{101}}^1$

素因数の和:217

約数の個数: 96

約数和(自身を含む): 51819264

約数和(自身を除く): 31867724

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 83, 85, 101, 119, 140, 166, 170, 202, 238, 332, 340, 404, 415, 476, 505, 581, 595, 707, 830, 1010, 1162, 1190, 1411, 1414, 1660, 1717, 2020, 2324, 2380, 2822, 2828, 2905, 3434, 3535, 5644, 5810, 6868, 7055, 7070, 8383, 8585, 9877, 11620, 12019, 14110, 14140, 16766, 17170, 19754, 24038, 28220, 33532, 34340, 39508, 41915, 48076, 49385, 58681, 60095, 83830, 98770, 117362, 120190, 142511, 167660, 197540, 234724, 240380, 285022, 293405, 570044, 586810, 712555, 997577, 1173620, 1425110, 1995154, 2850220, 3990308, 4987885, 9975770, 19951540]

約数ペア:

[(1, 19951540), (2, 9975770), (4, 4987885), (5, 3990308), (7, 2850220), (10, 1995154), (14, 1425110), (17, 1173620), (20, 997577), (28, 712555), (34, 586810), (35, 570044), (68, 293405), (70, 285022), (83, 240380), (85, 234724), (101, 197540), (119, 167660), (140, 142511), (166, 120190), (170, 117362), (202, 98770), (238, 83830), (332, 60095), (340, 58681), (404, 49385), (415, 48076), (476, 41915), (505, 39508), (581, 34340), (595, 33532), (707, 28220), (830, 24038), (1010, 19754), (1162, 17170), (1190, 16766), (1411, 14140), (1414, 14110), (1660, 12019), (1717, 11620), (2020, 9877), (2324, 8585), (2380, 8383), (2822, 7070), (2828, 7055), (2905, 6868), (3434, 5810), (3535, 5644)]