71654320

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1$

素因数の和:155

約数の個数: 160

約数和(自身を含む): 192844800

約数和(自身を除く): 121190480

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 34, 38, 40, 47, 59, 68, 76, 80, 85, 94, 95, 118, 136, 152, 170, 188, 190, 235, 236, 272, 295, 304, 323, 340, 376, 380, 470, 472, 590, 646, 680, 752, 760, 799, 893, 940, 944, 1003, 1121, 1180, 1292, 1360, 1520, 1598, 1615, 1786, 1880, 2006, 2242, 2360, 2584, 2773, 3196, 3230, 3572, 3760, 3995, 4012, 4465, 4484, 4720, 5015, 5168, 5546, 5605, 6392, 6460, 7144, 7990, 8024, 8930, 8968, 10030, 11092, 11210, 12784, 12920, 13865, 14288, 15181, 15980, 16048, 17860, 17936, 19057, 20060, 22184, 22420, 25840, 27730, 30362, 31960, 35720, 38114, 40120, 44368, 44840, 47141, 52687, 55460, 60724, 63920, 71440, 75905, 76228, 80240, 89680, 94282, 95285, 105374, 110920, 121448, 151810, 152456, 188564, 190570, 210748, 221840, 235705, 242896, 263435, 303620, 304912, 377128, 381140, 421496, 471410, 526870, 607240, 754256, 762280, 842992, 895679, 942820, 1053740, 1214480, 1524560, 1791358, 1885640, 2107480, 3582716, 3771280, 4214960, 4478395, 7165432, 8956790, 14330864, 17913580, 35827160, 71654320]

約数ペア:

[(1, 71654320), (2, 35827160), (4, 17913580), (5, 14330864), (8, 8956790), (10, 7165432), (16, 4478395), (17, 4214960), (19, 3771280), (20, 3582716), (34, 2107480), (38, 1885640), (40, 1791358), (47, 1524560), (59, 1214480), (68, 1053740), (76, 942820), (80, 895679), (85, 842992), (94, 762280), (95, 754256), (118, 607240), (136, 526870), (152, 471410), (170, 421496), (188, 381140), (190, 377128), (235, 304912), (236, 303620), (272, 263435), (295, 242896), (304, 235705), (323, 221840), (340, 210748), (376, 190570), (380, 188564), (470, 152456), (472, 151810), (590, 121448), (646, 110920), (680, 105374), (752, 95285), (760, 94282), (799, 89680), (893, 80240), (940, 76228), (944, 75905), (1003, 71440), (1121, 63920), (1180, 60724), (1292, 55460), (1360, 52687), (1520, 47141), (1598, 44840), (1615, 44368), (1786, 40120), (1880, 38114), (2006, 35720), (2242, 31960), (2360, 30362), (2584, 27730), (2773, 25840), (3196, 22420), (3230, 22184), (3572, 20060), (3760, 19057), (3995, 17936), (4012, 17860), (4465, 16048), (4484, 15980), (4720, 15181), (5015, 14288), (5168, 13865), (5546, 12920), (5605, 12784), (6392, 11210), (6460, 11092), (7144, 10030), (7990, 8968), (8024, 8930)]