15378720

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1$

素因数の和:247

約数の個数: 192

約数和(自身を含む): 58060800

約数和(自身を除く): 42682080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 23, 24, 28, 30, 32, 35, 40, 42, 46, 48, 56, 60, 69, 70, 80, 84, 92, 96, 105, 112, 115, 120, 138, 140, 160, 161, 168, 184, 199, 210, 224, 230, 240, 276, 280, 322, 336, 345, 368, 398, 420, 460, 480, 483, 552, 560, 597, 644, 672, 690, 736, 796, 805, 840, 920, 966, 995, 1104, 1120, 1194, 1288, 1380, 1393, 1592, 1610, 1680, 1840, 1932, 1990, 2208, 2388, 2415, 2576, 2760, 2786, 2985, 3184, 3220, 3360, 3680, 3864, 3980, 4179, 4577, 4776, 4830, 5152, 5520, 5572, 5970, 6368, 6440, 6965, 7728, 7960, 8358, 9154, 9552, 9660, 11040, 11144, 11940, 12880, 13731, 13930, 15456, 15920, 16716, 18308, 19104, 19320, 20895, 22288, 22885, 23880, 25760, 27462, 27860, 31840, 32039, 33432, 36616, 38640, 41790, 44576, 45770, 47760, 54924, 55720, 64078, 66864, 68655, 73232, 77280, 83580, 91540, 95520, 96117, 109848, 111440, 128156, 133728, 137310, 146464, 160195, 167160, 183080, 192234, 219696, 222880, 256312, 274620, 320390, 334320, 366160, 384468, 439392, 480585, 512624, 549240, 640780, 668640, 732320, 768936, 961170, 1025248, 1098480, 1281560, 1537872, 1922340, 2196960, 2563120, 3075744, 3844680, 5126240, 7689360, 15378720]

約数ペア:

[(1, 15378720), (2, 7689360), (3, 5126240), (4, 3844680), (5, 3075744), (6, 2563120), (7, 2196960), (8, 1922340), (10, 1537872), (12, 1281560), (14, 1098480), (15, 1025248), (16, 961170), (20, 768936), (21, 732320), (23, 668640), (24, 640780), (28, 549240), (30, 512624), (32, 480585), (35, 439392), (40, 384468), (42, 366160), (46, 334320), (48, 320390), (56, 274620), (60, 256312), (69, 222880), (70, 219696), (80, 192234), (84, 183080), (92, 167160), (96, 160195), (105, 146464), (112, 137310), (115, 133728), (120, 128156), (138, 111440), (140, 109848), (160, 96117), (161, 95520), (168, 91540), (184, 83580), (199, 77280), (210, 73232), (224, 68655), (230, 66864), (240, 64078), (276, 55720), (280, 54924), (322, 47760), (336, 45770), (345, 44576), (368, 41790), (398, 38640), (420, 36616), (460, 33432), (480, 32039), (483, 31840), (552, 27860), (560, 27462), (597, 25760), (644, 23880), (672, 22885), (690, 22288), (736, 20895), (796, 19320), (805, 19104), (840, 18308), (920, 16716), (966, 15920), (995, 15456), (1104, 13930), (1120, 13731), (1194, 12880), (1288, 11940), (1380, 11144), (1393, 11040), (1592, 9660), (1610, 9552), (1680, 9154), (1840, 8358), (1932, 7960), (1990, 7728), (2208, 6965), (2388, 6440), (2415, 6368), (2576, 5970), (2760, 5572), (2786, 5520), (2985, 5152), (3184, 4830), (3220, 4776), (3360, 4577), (3680, 4179), (3864, 3980)]