81172980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2801}}^1$

素因数の和:2846

約数の個数: 144

約数和(自身を含む): 293739264

約数和(自身を除く): 212566284

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 23, 28, 30, 35, 36, 42, 45, 46, 60, 63, 69, 70, 84, 90, 92, 105, 115, 126, 138, 140, 161, 180, 207, 210, 230, 252, 276, 315, 322, 345, 414, 420, 460, 483, 630, 644, 690, 805, 828, 966, 1035, 1260, 1380, 1449, 1610, 1932, 2070, 2415, 2801, 2898, 3220, 4140, 4830, 5602, 5796, 7245, 8403, 9660, 11204, 14005, 14490, 16806, 19607, 25209, 28010, 28980, 33612, 39214, 42015, 50418, 56020, 58821, 64423, 78428, 84030, 98035, 100836, 117642, 126045, 128846, 168060, 176463, 193269, 196070, 235284, 252090, 257692, 294105, 322115, 352926, 386538, 392140, 450961, 504180, 579807, 588210, 644230, 705852, 773076, 882315, 901922, 966345, 1159614, 1176420, 1288460, 1352883, 1764630, 1803844, 1932690, 2254805, 2319228, 2705766, 2899035, 3529260, 3865380, 4058649, 4509610, 5411532, 5798070, 6764415, 8117298, 9019220, 11596140, 13528830, 16234596, 20293245, 27057660, 40586490, 81172980]

約数ペア:

[(1, 81172980), (2, 40586490), (3, 27057660), (4, 20293245), (5, 16234596), (6, 13528830), (7, 11596140), (9, 9019220), (10, 8117298), (12, 6764415), (14, 5798070), (15, 5411532), (18, 4509610), (20, 4058649), (21, 3865380), (23, 3529260), (28, 2899035), (30, 2705766), (35, 2319228), (36, 2254805), (42, 1932690), (45, 1803844), (46, 1764630), (60, 1352883), (63, 1288460), (69, 1176420), (70, 1159614), (84, 966345), (90, 901922), (92, 882315), (105, 773076), (115, 705852), (126, 644230), (138, 588210), (140, 579807), (161, 504180), (180, 450961), (207, 392140), (210, 386538), (230, 352926), (252, 322115), (276, 294105), (315, 257692), (322, 252090), (345, 235284), (414, 196070), (420, 193269), (460, 176463), (483, 168060), (630, 128846), (644, 126045), (690, 117642), (805, 100836), (828, 98035), (966, 84030), (1035, 78428), (1260, 64423), (1380, 58821), (1449, 56020), (1610, 50418), (1932, 42015), (2070, 39214), (2415, 33612), (2801, 28980), (2898, 28010), (3220, 25209), (4140, 19607), (4830, 16806), (5602, 14490), (5796, 14005), (7245, 11204), (8403, 9660)]