28878120

素因数分解:

$2^3\times 3^5\times 5^1\times {\mathrm{2971}}^1$

素因数の和:2997

約数の個数: 96

約数和(自身を含む): 97362720

約数和(自身を除く): 68484600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 243, 270, 324, 360, 405, 486, 540, 648, 810, 972, 1080, 1215, 1620, 1944, 2430, 2971, 3240, 4860, 5942, 8913, 9720, 11884, 14855, 17826, 23768, 26739, 29710, 35652, 44565, 53478, 59420, 71304, 80217, 89130, 106956, 118840, 133695, 160434, 178260, 213912, 240651, 267390, 320868, 356520, 401085, 481302, 534780, 641736, 721953, 802170, 962604, 1069560, 1203255, 1443906, 1604340, 1925208, 2406510, 2887812, 3208680, 3609765, 4813020, 5775624, 7219530, 9626040, 14439060, 28878120]

約数ペア:

[(1, 28878120), (2, 14439060), (3, 9626040), (4, 7219530), (5, 5775624), (6, 4813020), (8, 3609765), (9, 3208680), (10, 2887812), (12, 2406510), (15, 1925208), (18, 1604340), (20, 1443906), (24, 1203255), (27, 1069560), (30, 962604), (36, 802170), (40, 721953), (45, 641736), (54, 534780), (60, 481302), (72, 401085), (81, 356520), (90, 320868), (108, 267390), (120, 240651), (135, 213912), (162, 178260), (180, 160434), (216, 133695), (243, 118840), (270, 106956), (324, 89130), (360, 80217), (405, 71304), (486, 59420), (540, 53478), (648, 44565), (810, 35652), (972, 29710), (1080, 26739), (1215, 23768), (1620, 17826), (1944, 14855), (2430, 11884), (2971, 9720), (3240, 8913), (4860, 5942)]