20312460

素因数分解:

$2^2\times 3^2\times 5^1\times 7^4\times {\mathrm{47}}^1$

素因数の和:90

約数の個数: 180

約数和(自身を含む): 73408608

約数和(自身を除く): 53096148

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 47, 49, 60, 63, 70, 84, 90, 94, 98, 105, 126, 140, 141, 147, 180, 188, 196, 210, 235, 245, 252, 282, 294, 315, 329, 343, 420, 423, 441, 470, 490, 564, 588, 630, 658, 686, 705, 735, 846, 882, 940, 980, 987, 1029, 1260, 1316, 1372, 1410, 1470, 1645, 1692, 1715, 1764, 1974, 2058, 2115, 2205, 2303, 2401, 2820, 2940, 2961, 3087, 3290, 3430, 3948, 4116, 4230, 4410, 4606, 4802, 4935, 5145, 5922, 6174, 6580, 6860, 6909, 7203, 8460, 8820, 9212, 9604, 9870, 10290, 11515, 11844, 12005, 12348, 13818, 14406, 14805, 15435, 16121, 19740, 20580, 20727, 21609, 23030, 24010, 27636, 28812, 29610, 30870, 32242, 34545, 36015, 41454, 43218, 46060, 48020, 48363, 59220, 61740, 64484, 69090, 72030, 80605, 82908, 86436, 96726, 103635, 108045, 112847, 138180, 144060, 145089, 161210, 193452, 207270, 216090, 225694, 241815, 290178, 322420, 338541, 414540, 432180, 451388, 483630, 564235, 580356, 677082, 725445, 967260, 1015623, 1128470, 1354164, 1450890, 1692705, 2031246, 2256940, 2901780, 3385410, 4062492, 5078115, 6770820, 10156230, 20312460]

約数ペア:

[(1, 20312460), (2, 10156230), (3, 6770820), (4, 5078115), (5, 4062492), (6, 3385410), (7, 2901780), (9, 2256940), (10, 2031246), (12, 1692705), (14, 1450890), (15, 1354164), (18, 1128470), (20, 1015623), (21, 967260), (28, 725445), (30, 677082), (35, 580356), (36, 564235), (42, 483630), (45, 451388), (47, 432180), (49, 414540), (60, 338541), (63, 322420), (70, 290178), (84, 241815), (90, 225694), (94, 216090), (98, 207270), (105, 193452), (126, 161210), (140, 145089), (141, 144060), (147, 138180), (180, 112847), (188, 108045), (196, 103635), (210, 96726), (235, 86436), (245, 82908), (252, 80605), (282, 72030), (294, 69090), (315, 64484), (329, 61740), (343, 59220), (420, 48363), (423, 48020), (441, 46060), (470, 43218), (490, 41454), (564, 36015), (588, 34545), (630, 32242), (658, 30870), (686, 29610), (705, 28812), (735, 27636), (846, 24010), (882, 23030), (940, 21609), (980, 20727), (987, 20580), (1029, 19740), (1260, 16121), (1316, 15435), (1372, 14805), (1410, 14406), (1470, 13818), (1645, 12348), (1692, 12005), (1715, 11844), (1764, 11515), (1974, 10290), (2058, 9870), (2115, 9604), (2205, 9212), (2303, 8820), (2401, 8460), (2820, 7203), (2940, 6909), (2961, 6860), (3087, 6580), (3290, 6174), (3430, 5922), (3948, 5145), (4116, 4935), (4230, 4802), (4410, 4606)]