278977160

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{1709}}^1$

素因数の和:1791

約数の個数: 128

約数和(自身を含む): 797817600

約数和(自身を除く): 518840440

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 53, 55, 56, 70, 77, 88, 106, 110, 140, 154, 212, 220, 265, 280, 308, 371, 385, 424, 440, 530, 583, 616, 742, 770, 1060, 1166, 1484, 1540, 1709, 1855, 2120, 2332, 2915, 2968, 3080, 3418, 3710, 4081, 4664, 5830, 6836, 7420, 8162, 8545, 11660, 11963, 13672, 14840, 16324, 17090, 18799, 20405, 23320, 23926, 32648, 34180, 37598, 40810, 47852, 59815, 68360, 75196, 81620, 90577, 93995, 95704, 119630, 131593, 150392, 163240, 181154, 187990, 239260, 263186, 362308, 375980, 452885, 478520, 526372, 634039, 657965, 724616, 751960, 905770, 996347, 1052744, 1268078, 1315930, 1811540, 1992694, 2536156, 2631860, 3170195, 3623080, 3985388, 4981735, 5072312, 5263720, 6340390, 6974429, 7970776, 9963470, 12680780, 13948858, 19926940, 25361560, 27897716, 34872145, 39853880, 55795432, 69744290, 139488580, 278977160]

約数ペア:

[(1, 278977160), (2, 139488580), (4, 69744290), (5, 55795432), (7, 39853880), (8, 34872145), (10, 27897716), (11, 25361560), (14, 19926940), (20, 13948858), (22, 12680780), (28, 9963470), (35, 7970776), (40, 6974429), (44, 6340390), (53, 5263720), (55, 5072312), (56, 4981735), (70, 3985388), (77, 3623080), (88, 3170195), (106, 2631860), (110, 2536156), (140, 1992694), (154, 1811540), (212, 1315930), (220, 1268078), (265, 1052744), (280, 996347), (308, 905770), (371, 751960), (385, 724616), (424, 657965), (440, 634039), (530, 526372), (583, 478520), (616, 452885), (742, 375980), (770, 362308), (1060, 263186), (1166, 239260), (1484, 187990), (1540, 181154), (1709, 163240), (1855, 150392), (2120, 131593), (2332, 119630), (2915, 95704), (2968, 93995), (3080, 90577), (3418, 81620), (3710, 75196), (4081, 68360), (4664, 59815), (5830, 47852), (6836, 40810), (7420, 37598), (8162, 34180), (8545, 32648), (11660, 23926), (11963, 23320), (13672, 20405), (14840, 18799), (16324, 17090)]