245939120

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{457}}^1$

素因数の和:539

約数の個数: 120

約数和(自身を含む): 676733472

約数和(自身を除く): 430794352

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 112, 124, 140, 155, 217, 248, 280, 310, 434, 457, 496, 560, 620, 868, 914, 961, 1085, 1240, 1736, 1828, 1922, 2170, 2285, 2480, 3199, 3472, 3656, 3844, 4340, 4570, 4805, 6398, 6727, 7312, 7688, 8680, 9140, 9610, 12796, 13454, 14167, 15376, 15995, 17360, 18280, 19220, 25592, 26908, 28334, 31990, 33635, 36560, 38440, 51184, 53816, 56668, 63980, 67270, 70835, 76880, 99169, 107632, 113336, 127960, 134540, 141670, 198338, 226672, 255920, 269080, 283340, 396676, 439177, 495845, 538160, 566680, 793352, 878354, 991690, 1133360, 1586704, 1756708, 1983380, 2195885, 3074239, 3513416, 3966760, 4391770, 6148478, 7026832, 7933520, 8783540, 12296956, 15371195, 17567080, 24593912, 30742390, 35134160, 49187824, 61484780, 122969560, 245939120]

約数ペア:

[(1, 245939120), (2, 122969560), (4, 61484780), (5, 49187824), (7, 35134160), (8, 30742390), (10, 24593912), (14, 17567080), (16, 15371195), (20, 12296956), (28, 8783540), (31, 7933520), (35, 7026832), (40, 6148478), (56, 4391770), (62, 3966760), (70, 3513416), (80, 3074239), (112, 2195885), (124, 1983380), (140, 1756708), (155, 1586704), (217, 1133360), (248, 991690), (280, 878354), (310, 793352), (434, 566680), (457, 538160), (496, 495845), (560, 439177), (620, 396676), (868, 283340), (914, 269080), (961, 255920), (1085, 226672), (1240, 198338), (1736, 141670), (1828, 134540), (1922, 127960), (2170, 113336), (2285, 107632), (2480, 99169), (3199, 76880), (3472, 70835), (3656, 67270), (3844, 63980), (4340, 56668), (4570, 53816), (4805, 51184), (6398, 38440), (6727, 36560), (7312, 33635), (7688, 31990), (8680, 28334), (9140, 26908), (9610, 25592), (12796, 19220), (13454, 18280), (14167, 17360), (15376, 15995)]