15496020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1$

素因数の和:254

約数の個数: 144

約数和(自身を含む): 51891840

約数和(自身を除く): 36395820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 23, 30, 36, 38, 45, 46, 57, 60, 69, 76, 90, 92, 95, 114, 115, 138, 171, 180, 190, 197, 207, 228, 230, 276, 285, 342, 345, 380, 394, 414, 437, 460, 570, 591, 684, 690, 788, 828, 855, 874, 985, 1035, 1140, 1182, 1311, 1380, 1710, 1748, 1773, 1970, 2070, 2185, 2364, 2622, 2955, 3420, 3546, 3743, 3933, 3940, 4140, 4370, 4531, 5244, 5910, 6555, 7092, 7486, 7866, 8740, 8865, 9062, 11229, 11820, 13110, 13593, 14972, 15732, 17730, 18124, 18715, 19665, 22458, 22655, 26220, 27186, 33687, 35460, 37430, 39330, 40779, 44916, 45310, 54372, 56145, 67374, 67965, 74860, 78660, 81558, 86089, 90620, 112290, 134748, 135930, 163116, 168435, 172178, 203895, 224580, 258267, 271860, 336870, 344356, 407790, 430445, 516534, 673740, 774801, 815580, 860890, 1033068, 1291335, 1549602, 1721780, 2582670, 3099204, 3874005, 5165340, 7748010, 15496020]

約数ペア:

[(1, 15496020), (2, 7748010), (3, 5165340), (4, 3874005), (5, 3099204), (6, 2582670), (9, 1721780), (10, 1549602), (12, 1291335), (15, 1033068), (18, 860890), (19, 815580), (20, 774801), (23, 673740), (30, 516534), (36, 430445), (38, 407790), (45, 344356), (46, 336870), (57, 271860), (60, 258267), (69, 224580), (76, 203895), (90, 172178), (92, 168435), (95, 163116), (114, 135930), (115, 134748), (138, 112290), (171, 90620), (180, 86089), (190, 81558), (197, 78660), (207, 74860), (228, 67965), (230, 67374), (276, 56145), (285, 54372), (342, 45310), (345, 44916), (380, 40779), (394, 39330), (414, 37430), (437, 35460), (460, 33687), (570, 27186), (591, 26220), (684, 22655), (690, 22458), (788, 19665), (828, 18715), (855, 18124), (874, 17730), (985, 15732), (1035, 14972), (1140, 13593), (1182, 13110), (1311, 11820), (1380, 11229), (1710, 9062), (1748, 8865), (1773, 8740), (1970, 7866), (2070, 7486), (2185, 7092), (2364, 6555), (2622, 5910), (2955, 5244), (3420, 4531), (3546, 4370), (3743, 4140), (3933, 3940)]