278643120

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{2719}}^1$

素因数の和:2803

約数の個数: 160

約数和(自身を含む): 1003745280

約数和(自身を除く): 725102160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 61, 70, 80, 84, 105, 112, 120, 122, 140, 168, 183, 210, 240, 244, 280, 305, 336, 366, 420, 427, 488, 560, 610, 732, 840, 854, 915, 976, 1220, 1281, 1464, 1680, 1708, 1830, 2135, 2440, 2562, 2719, 2928, 3416, 3660, 4270, 4880, 5124, 5438, 6405, 6832, 7320, 8157, 8540, 10248, 10876, 12810, 13595, 14640, 16314, 17080, 19033, 20496, 21752, 25620, 27190, 32628, 34160, 38066, 40785, 43504, 51240, 54380, 57099, 65256, 76132, 81570, 95165, 102480, 108760, 114198, 130512, 152264, 163140, 165859, 190330, 217520, 228396, 285495, 304528, 326280, 331718, 380660, 456792, 497577, 570990, 652560, 663436, 761320, 829295, 913584, 995154, 1141980, 1161013, 1326872, 1522640, 1658590, 1990308, 2283960, 2322026, 2487885, 2653744, 3317180, 3483039, 3980616, 4567920, 4644052, 4975770, 5805065, 6634360, 6966078, 7961232, 9288104, 9951540, 11610130, 13268720, 13932156, 17415195, 18576208, 19903080, 23220260, 27864312, 34830390, 39806160, 46440520, 55728624, 69660780, 92881040, 139321560, 278643120]

約数ペア:

[(1, 278643120), (2, 139321560), (3, 92881040), (4, 69660780), (5, 55728624), (6, 46440520), (7, 39806160), (8, 34830390), (10, 27864312), (12, 23220260), (14, 19903080), (15, 18576208), (16, 17415195), (20, 13932156), (21, 13268720), (24, 11610130), (28, 9951540), (30, 9288104), (35, 7961232), (40, 6966078), (42, 6634360), (48, 5805065), (56, 4975770), (60, 4644052), (61, 4567920), (70, 3980616), (80, 3483039), (84, 3317180), (105, 2653744), (112, 2487885), (120, 2322026), (122, 2283960), (140, 1990308), (168, 1658590), (183, 1522640), (210, 1326872), (240, 1161013), (244, 1141980), (280, 995154), (305, 913584), (336, 829295), (366, 761320), (420, 663436), (427, 652560), (488, 570990), (560, 497577), (610, 456792), (732, 380660), (840, 331718), (854, 326280), (915, 304528), (976, 285495), (1220, 228396), (1281, 217520), (1464, 190330), (1680, 165859), (1708, 163140), (1830, 152264), (2135, 130512), (2440, 114198), (2562, 108760), (2719, 102480), (2928, 95165), (3416, 81570), (3660, 76132), (4270, 65256), (4880, 57099), (5124, 54380), (5438, 51240), (6405, 43504), (6832, 40785), (7320, 38066), (8157, 34160), (8540, 32628), (10248, 27190), (10876, 25620), (12810, 21752), (13595, 20496), (14640, 19033), (16314, 17080)]