28178136

素因数分解:

$2^3\times 3^2\times 7^4\times {\mathrm{163}}^1$

素因数の和:203

約数の個数: 120

約数和(自身を含む): 89575980

約数和(自身を除く): 61397844

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 49, 56, 63, 72, 84, 98, 126, 147, 163, 168, 196, 252, 294, 326, 343, 392, 441, 489, 504, 588, 652, 686, 882, 978, 1029, 1141, 1176, 1304, 1372, 1467, 1764, 1956, 2058, 2282, 2401, 2744, 2934, 3087, 3423, 3528, 3912, 4116, 4564, 4802, 5868, 6174, 6846, 7203, 7987, 8232, 9128, 9604, 10269, 11736, 12348, 13692, 14406, 15974, 19208, 20538, 21609, 23961, 24696, 27384, 28812, 31948, 41076, 43218, 47922, 55909, 57624, 63896, 71883, 82152, 86436, 95844, 111818, 143766, 167727, 172872, 191688, 223636, 287532, 335454, 391363, 447272, 503181, 575064, 670908, 782726, 1006362, 1174089, 1341816, 1565452, 2012724, 2348178, 3130904, 3522267, 4025448, 4696356, 7044534, 9392712, 14089068, 28178136]

約数ペア:

[(1, 28178136), (2, 14089068), (3, 9392712), (4, 7044534), (6, 4696356), (7, 4025448), (8, 3522267), (9, 3130904), (12, 2348178), (14, 2012724), (18, 1565452), (21, 1341816), (24, 1174089), (28, 1006362), (36, 782726), (42, 670908), (49, 575064), (56, 503181), (63, 447272), (72, 391363), (84, 335454), (98, 287532), (126, 223636), (147, 191688), (163, 172872), (168, 167727), (196, 143766), (252, 111818), (294, 95844), (326, 86436), (343, 82152), (392, 71883), (441, 63896), (489, 57624), (504, 55909), (588, 47922), (652, 43218), (686, 41076), (882, 31948), (978, 28812), (1029, 27384), (1141, 24696), (1176, 23961), (1304, 21609), (1372, 20538), (1467, 19208), (1764, 15974), (1956, 14406), (2058, 13692), (2282, 12348), (2401, 11736), (2744, 10269), (2934, 9604), (3087, 9128), (3423, 8232), (3528, 7987), (3912, 7203), (4116, 6846), (4564, 6174), (4802, 5868)]