178918980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^2\times {\mathrm{107}}^1$

素因数の和:210

約数の個数: 144

約数和(自身を含む): 540509760

約数和(自身を除く): 361590780

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 29, 30, 31, 58, 60, 62, 87, 93, 107, 116, 124, 145, 155, 174, 186, 214, 290, 310, 321, 348, 372, 428, 435, 465, 535, 580, 620, 642, 870, 899, 930, 961, 1070, 1284, 1605, 1740, 1798, 1860, 1922, 2140, 2697, 2883, 3103, 3210, 3317, 3596, 3844, 4495, 4805, 5394, 5766, 6206, 6420, 6634, 8990, 9309, 9610, 9951, 10788, 11532, 12412, 13268, 13485, 14415, 15515, 16585, 17980, 18618, 19220, 19902, 26970, 27869, 28830, 31030, 33170, 37236, 39804, 46545, 49755, 53940, 55738, 57660, 62060, 66340, 83607, 93090, 96193, 99510, 102827, 111476, 139345, 167214, 186180, 192386, 199020, 205654, 278690, 288579, 308481, 334428, 384772, 411308, 418035, 480965, 514135, 557380, 577158, 616962, 836070, 961930, 1028270, 1154316, 1233924, 1442895, 1542405, 1672140, 1923860, 2056540, 2885790, 2981983, 3084810, 5771580, 5963966, 6169620, 8945949, 11927932, 14909915, 17891898, 29819830, 35783796, 44729745, 59639660, 89459490, 178918980]

約数ペア:

[(1, 178918980), (2, 89459490), (3, 59639660), (4, 44729745), (5, 35783796), (6, 29819830), (10, 17891898), (12, 14909915), (15, 11927932), (20, 8945949), (29, 6169620), (30, 5963966), (31, 5771580), (58, 3084810), (60, 2981983), (62, 2885790), (87, 2056540), (93, 1923860), (107, 1672140), (116, 1542405), (124, 1442895), (145, 1233924), (155, 1154316), (174, 1028270), (186, 961930), (214, 836070), (290, 616962), (310, 577158), (321, 557380), (348, 514135), (372, 480965), (428, 418035), (435, 411308), (465, 384772), (535, 334428), (580, 308481), (620, 288579), (642, 278690), (870, 205654), (899, 199020), (930, 192386), (961, 186180), (1070, 167214), (1284, 139345), (1605, 111476), (1740, 102827), (1798, 99510), (1860, 96193), (1922, 93090), (2140, 83607), (2697, 66340), (2883, 62060), (3103, 57660), (3210, 55738), (3317, 53940), (3596, 49755), (3844, 46545), (4495, 39804), (4805, 37236), (5394, 33170), (5766, 31030), (6206, 28830), (6420, 27869), (6634, 26970), (8990, 19902), (9309, 19220), (9610, 18618), (9951, 17980), (10788, 16585), (11532, 15515), (12412, 14415), (13268, 13485)]