128376160

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{349}}^1$

素因数の和:405

約数の個数: 144

約数和(自身を含む): 351918000

約数和(自身を除く): 223541840

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 32, 38, 40, 44, 55, 76, 80, 88, 95, 110, 121, 152, 160, 176, 190, 209, 220, 242, 304, 349, 352, 380, 418, 440, 484, 605, 608, 698, 760, 836, 880, 968, 1045, 1210, 1396, 1520, 1672, 1745, 1760, 1936, 2090, 2299, 2420, 2792, 3040, 3344, 3490, 3839, 3872, 4180, 4598, 4840, 5584, 6631, 6688, 6980, 7678, 8360, 9196, 9680, 11168, 11495, 13262, 13960, 15356, 16720, 18392, 19195, 19360, 22990, 26524, 27920, 30712, 33155, 33440, 36784, 38390, 42229, 45980, 53048, 55840, 61424, 66310, 72941, 73568, 76780, 84458, 91960, 106096, 122848, 132620, 145882, 153560, 168916, 183920, 211145, 212192, 265240, 291764, 307120, 337832, 364705, 367840, 422290, 530480, 583528, 614240, 675664, 729410, 802351, 844580, 1060960, 1167056, 1351328, 1458820, 1604702, 1689160, 2334112, 2917640, 3209404, 3378320, 4011755, 5835280, 6418808, 6756640, 8023510, 11670560, 12837616, 16047020, 25675232, 32094040, 64188080, 128376160]

約数ペア:

[(1, 128376160), (2, 64188080), (4, 32094040), (5, 25675232), (8, 16047020), (10, 12837616), (11, 11670560), (16, 8023510), (19, 6756640), (20, 6418808), (22, 5835280), (32, 4011755), (38, 3378320), (40, 3209404), (44, 2917640), (55, 2334112), (76, 1689160), (80, 1604702), (88, 1458820), (95, 1351328), (110, 1167056), (121, 1060960), (152, 844580), (160, 802351), (176, 729410), (190, 675664), (209, 614240), (220, 583528), (242, 530480), (304, 422290), (349, 367840), (352, 364705), (380, 337832), (418, 307120), (440, 291764), (484, 265240), (605, 212192), (608, 211145), (698, 183920), (760, 168916), (836, 153560), (880, 145882), (968, 132620), (1045, 122848), (1210, 106096), (1396, 91960), (1520, 84458), (1672, 76780), (1745, 73568), (1760, 72941), (1936, 66310), (2090, 61424), (2299, 55840), (2420, 53048), (2792, 45980), (3040, 42229), (3344, 38390), (3490, 36784), (3839, 33440), (3872, 33155), (4180, 30712), (4598, 27920), (4840, 26524), (5584, 22990), (6631, 19360), (6688, 19195), (6980, 18392), (7678, 16720), (8360, 15356), (9196, 13960), (9680, 13262), (11168, 11495)]