28388256

素因数分解:

$2^5\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{43}}^1$

素因数の和:115

約数の個数: 144

約数和(自身を含む): 85843296

約数和(自身を除く): 57455040

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 23, 24, 26, 32, 39, 43, 46, 48, 52, 69, 78, 86, 92, 96, 104, 129, 138, 156, 172, 184, 208, 258, 276, 299, 312, 344, 368, 416, 516, 529, 552, 559, 598, 624, 688, 736, 897, 989, 1032, 1058, 1104, 1118, 1196, 1248, 1376, 1587, 1677, 1794, 1978, 2064, 2116, 2208, 2236, 2392, 2967, 3174, 3354, 3588, 3956, 4128, 4232, 4472, 4784, 5934, 6348, 6708, 6877, 7176, 7912, 8464, 8944, 9568, 11868, 12696, 12857, 13416, 13754, 14352, 15824, 16928, 17888, 20631, 22747, 23736, 25392, 25714, 26832, 27508, 28704, 31648, 38571, 41262, 45494, 47472, 50784, 51428, 53664, 55016, 68241, 77142, 82524, 90988, 94944, 102856, 110032, 136482, 154284, 165048, 181976, 205712, 220064, 272964, 295711, 308568, 330096, 363952, 411424, 545928, 591422, 617136, 660192, 727904, 887133, 1091856, 1182844, 1234272, 1774266, 2183712, 2365688, 3548532, 4731376, 7097064, 9462752, 14194128, 28388256]

約数ペア:

[(1, 28388256), (2, 14194128), (3, 9462752), (4, 7097064), (6, 4731376), (8, 3548532), (12, 2365688), (13, 2183712), (16, 1774266), (23, 1234272), (24, 1182844), (26, 1091856), (32, 887133), (39, 727904), (43, 660192), (46, 617136), (48, 591422), (52, 545928), (69, 411424), (78, 363952), (86, 330096), (92, 308568), (96, 295711), (104, 272964), (129, 220064), (138, 205712), (156, 181976), (172, 165048), (184, 154284), (208, 136482), (258, 110032), (276, 102856), (299, 94944), (312, 90988), (344, 82524), (368, 77142), (416, 68241), (516, 55016), (529, 53664), (552, 51428), (559, 50784), (598, 47472), (624, 45494), (688, 41262), (736, 38571), (897, 31648), (989, 28704), (1032, 27508), (1058, 26832), (1104, 25714), (1118, 25392), (1196, 23736), (1248, 22747), (1376, 20631), (1587, 17888), (1677, 16928), (1794, 15824), (1978, 14352), (2064, 13754), (2116, 13416), (2208, 12857), (2236, 12696), (2392, 11868), (2967, 9568), (3174, 8944), (3354, 8464), (3588, 7912), (3956, 7176), (4128, 6877), (4232, 6708), (4472, 6348), (4784, 5934)]