31129980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1$

素因数の和:168

約数の個数: 192

約数和(自身を含む): 108380160

約数和(自身を除く): 77250180

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 47, 57, 60, 70, 76, 83, 84, 94, 95, 105, 114, 133, 140, 141, 166, 188, 190, 210, 228, 235, 249, 266, 282, 285, 329, 332, 380, 399, 415, 420, 470, 498, 532, 564, 570, 581, 658, 665, 705, 798, 830, 893, 940, 987, 996, 1140, 1162, 1245, 1316, 1330, 1410, 1577, 1596, 1645, 1660, 1743, 1786, 1974, 1995, 2324, 2490, 2660, 2679, 2820, 2905, 3154, 3290, 3486, 3572, 3901, 3948, 3990, 4465, 4731, 4935, 4980, 5358, 5810, 6251, 6308, 6580, 6972, 7802, 7885, 7980, 8715, 8930, 9462, 9870, 10716, 11039, 11620, 11703, 12502, 13395, 15604, 15770, 17430, 17860, 18753, 18924, 19505, 19740, 22078, 23406, 23655, 25004, 26790, 27307, 31255, 31540, 33117, 34860, 37506, 39010, 44156, 46812, 47310, 53580, 54614, 55195, 58515, 62510, 66234, 74119, 75012, 78020, 81921, 93765, 94620, 109228, 110390, 117030, 125020, 132468, 136535, 148238, 163842, 165585, 187530, 220780, 222357, 234060, 273070, 296476, 327684, 331170, 370595, 375060, 409605, 444714, 518833, 546140, 662340, 741190, 819210, 889428, 1037666, 1111785, 1482380, 1556499, 1638420, 2075332, 2223570, 2594165, 3112998, 4447140, 5188330, 6225996, 7782495, 10376660, 15564990, 31129980]

約数ペア:

[(1, 31129980), (2, 15564990), (3, 10376660), (4, 7782495), (5, 6225996), (6, 5188330), (7, 4447140), (10, 3112998), (12, 2594165), (14, 2223570), (15, 2075332), (19, 1638420), (20, 1556499), (21, 1482380), (28, 1111785), (30, 1037666), (35, 889428), (38, 819210), (42, 741190), (47, 662340), (57, 546140), (60, 518833), (70, 444714), (76, 409605), (83, 375060), (84, 370595), (94, 331170), (95, 327684), (105, 296476), (114, 273070), (133, 234060), (140, 222357), (141, 220780), (166, 187530), (188, 165585), (190, 163842), (210, 148238), (228, 136535), (235, 132468), (249, 125020), (266, 117030), (282, 110390), (285, 109228), (329, 94620), (332, 93765), (380, 81921), (399, 78020), (415, 75012), (420, 74119), (470, 66234), (498, 62510), (532, 58515), (564, 55195), (570, 54614), (581, 53580), (658, 47310), (665, 46812), (705, 44156), (798, 39010), (830, 37506), (893, 34860), (940, 33117), (987, 31540), (996, 31255), (1140, 27307), (1162, 26790), (1245, 25004), (1316, 23655), (1330, 23406), (1410, 22078), (1577, 19740), (1596, 19505), (1645, 18924), (1660, 18753), (1743, 17860), (1786, 17430), (1974, 15770), (1995, 15604), (2324, 13395), (2490, 12502), (2660, 11703), (2679, 11620), (2820, 11039), (2905, 10716), (3154, 9870), (3290, 9462), (3486, 8930), (3572, 8715), (3901, 7980), (3948, 7885), (3990, 7802), (4465, 6972), (4731, 6580), (4935, 6308), (4980, 6251), (5358, 5810)]