161557120

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{479}}^1$

素因数の和:546

約数の個数: 128

約数和(自身を含む): 423014400

約数和(自身を除く): 261457280

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 31, 32, 34, 40, 62, 64, 68, 80, 85, 124, 128, 136, 155, 160, 170, 248, 272, 310, 320, 340, 479, 496, 527, 544, 620, 640, 680, 958, 992, 1054, 1088, 1240, 1360, 1916, 1984, 2108, 2176, 2395, 2480, 2635, 2720, 3832, 3968, 4216, 4790, 4960, 5270, 5440, 7664, 8143, 8432, 9580, 9920, 10540, 10880, 14849, 15328, 16286, 16864, 19160, 19840, 21080, 29698, 30656, 32572, 33728, 38320, 40715, 42160, 59396, 61312, 65144, 67456, 74245, 76640, 81430, 84320, 118792, 130288, 148490, 153280, 162860, 168640, 237584, 252433, 260576, 296980, 306560, 325720, 337280, 475168, 504866, 521152, 593960, 651440, 950336, 1009732, 1042304, 1187920, 1262165, 1302880, 1900672, 2019464, 2375840, 2524330, 2605760, 4038928, 4751680, 5048660, 5211520, 8077856, 9503360, 10097320, 16155712, 20194640, 32311424, 40389280, 80778560, 161557120]

約数ペア:

[(1, 161557120), (2, 80778560), (4, 40389280), (5, 32311424), (8, 20194640), (10, 16155712), (16, 10097320), (17, 9503360), (20, 8077856), (31, 5211520), (32, 5048660), (34, 4751680), (40, 4038928), (62, 2605760), (64, 2524330), (68, 2375840), (80, 2019464), (85, 1900672), (124, 1302880), (128, 1262165), (136, 1187920), (155, 1042304), (160, 1009732), (170, 950336), (248, 651440), (272, 593960), (310, 521152), (320, 504866), (340, 475168), (479, 337280), (496, 325720), (527, 306560), (544, 296980), (620, 260576), (640, 252433), (680, 237584), (958, 168640), (992, 162860), (1054, 153280), (1088, 148490), (1240, 130288), (1360, 118792), (1916, 84320), (1984, 81430), (2108, 76640), (2176, 74245), (2395, 67456), (2480, 65144), (2635, 61312), (2720, 59396), (3832, 42160), (3968, 40715), (4216, 38320), (4790, 33728), (4960, 32572), (5270, 30656), (5440, 29698), (7664, 21080), (8143, 19840), (8432, 19160), (9580, 16864), (9920, 16286), (10540, 15328), (10880, 14849)]