2901780

素因数分解:

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

素因数の和:83

約数の個数: 144

約数和(自身を含む): 10483200

約数和(自身を除く): 7581420

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, 2820, 2940, 2961, 3087, 3290, 3430, 3948, 4116, 4230, 4410, 4606, 4935, 5145, 5922, 6174, 6580, 6860, 6909, 8460, 8820, 9212, 9870, 10290, 11515, 11844, 12348, 13818, 14805, 15435, 16121, 19740, 20580, 20727, 23030, 27636, 29610, 30870, 32242, 34545, 41454, 46060, 48363, 59220, 61740, 64484, 69090, 80605, 82908, 96726, 103635, 138180, 145089, 161210, 193452, 207270, 241815, 290178, 322420, 414540, 483630, 580356, 725445, 967260, 1450890, 2901780]

約数ペア:

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