28333760

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1$

素因数の和:183

約数の個数: 168

約数和(自身を含む): 85130640

約数和(自身を除く): 56796880

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 49, 52, 56, 64, 65, 70, 80, 91, 98, 104, 112, 130, 139, 140, 160, 182, 196, 208, 224, 245, 260, 278, 280, 320, 364, 392, 416, 448, 455, 490, 520, 556, 560, 637, 695, 728, 784, 832, 910, 973, 980, 1040, 1112, 1120, 1274, 1390, 1456, 1568, 1807, 1820, 1946, 1960, 2080, 2224, 2240, 2548, 2780, 2912, 3136, 3185, 3614, 3640, 3892, 3920, 4160, 4448, 4865, 5096, 5560, 5824, 6370, 6811, 7228, 7280, 7784, 7840, 8896, 9035, 9730, 10192, 11120, 12649, 12740, 13622, 14456, 14560, 15568, 15680, 18070, 19460, 20384, 22240, 25298, 25480, 27244, 28912, 29120, 31136, 34055, 36140, 38920, 40768, 44480, 50596, 50960, 54488, 57824, 62272, 63245, 68110, 72280, 77840, 88543, 101192, 101920, 108976, 115648, 126490, 136220, 144560, 155680, 177086, 202384, 203840, 217952, 252980, 272440, 289120, 311360, 354172, 404768, 435904, 442715, 505960, 544880, 578240, 708344, 809536, 885430, 1011920, 1089760, 1416688, 1770860, 2023840, 2179520, 2833376, 3541720, 4047680, 5666752, 7083440, 14166880, 28333760]

約数ペア:

[(1, 28333760), (2, 14166880), (4, 7083440), (5, 5666752), (7, 4047680), (8, 3541720), (10, 2833376), (13, 2179520), (14, 2023840), (16, 1770860), (20, 1416688), (26, 1089760), (28, 1011920), (32, 885430), (35, 809536), (40, 708344), (49, 578240), (52, 544880), (56, 505960), (64, 442715), (65, 435904), (70, 404768), (80, 354172), (91, 311360), (98, 289120), (104, 272440), (112, 252980), (130, 217952), (139, 203840), (140, 202384), (160, 177086), (182, 155680), (196, 144560), (208, 136220), (224, 126490), (245, 115648), (260, 108976), (278, 101920), (280, 101192), (320, 88543), (364, 77840), (392, 72280), (416, 68110), (448, 63245), (455, 62272), (490, 57824), (520, 54488), (556, 50960), (560, 50596), (637, 44480), (695, 40768), (728, 38920), (784, 36140), (832, 34055), (910, 31136), (973, 29120), (980, 28912), (1040, 27244), (1112, 25480), (1120, 25298), (1274, 22240), (1390, 20384), (1456, 19460), (1568, 18070), (1807, 15680), (1820, 15568), (1946, 14560), (1960, 14456), (2080, 13622), (2224, 12740), (2240, 12649), (2548, 11120), (2780, 10192), (2912, 9730), (3136, 9035), (3185, 8896), (3614, 7840), (3640, 7784), (3892, 7280), (3920, 7228), (4160, 6811), (4448, 6370), (4865, 5824), (5096, 5560)]