171854080

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:184

約数の個数: 144

約数和(自身を含む): 437971968

約数和(自身を除く): 266117888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 61, 62, 64, 71, 80, 122, 124, 128, 142, 155, 160, 244, 248, 256, 284, 305, 310, 320, 355, 488, 496, 568, 610, 620, 640, 710, 976, 992, 1136, 1220, 1240, 1280, 1420, 1891, 1952, 1984, 2201, 2272, 2440, 2480, 2840, 3782, 3904, 3968, 4331, 4402, 4544, 4880, 4960, 5680, 7564, 7808, 7936, 8662, 8804, 9088, 9455, 9760, 9920, 11005, 11360, 15128, 15616, 17324, 17608, 18176, 18910, 19520, 19840, 21655, 22010, 22720, 30256, 34648, 35216, 37820, 39040, 39680, 43310, 44020, 45440, 60512, 69296, 70432, 75640, 78080, 86620, 88040, 90880, 121024, 134261, 138592, 140864, 151280, 173240, 176080, 242048, 268522, 277184, 281728, 302560, 346480, 352160, 484096, 537044, 554368, 563456, 605120, 671305, 692960, 704320, 1074088, 1108736, 1210240, 1342610, 1385920, 1408640, 2148176, 2420480, 2685220, 2771840, 2817280, 4296352, 5370440, 5543680, 8592704, 10740880, 17185408, 21481760, 34370816, 42963520, 85927040, 171854080]

約数ペア:

[(1, 171854080), (2, 85927040), (4, 42963520), (5, 34370816), (8, 21481760), (10, 17185408), (16, 10740880), (20, 8592704), (31, 5543680), (32, 5370440), (40, 4296352), (61, 2817280), (62, 2771840), (64, 2685220), (71, 2420480), (80, 2148176), (122, 1408640), (124, 1385920), (128, 1342610), (142, 1210240), (155, 1108736), (160, 1074088), (244, 704320), (248, 692960), (256, 671305), (284, 605120), (305, 563456), (310, 554368), (320, 537044), (355, 484096), (488, 352160), (496, 346480), (568, 302560), (610, 281728), (620, 277184), (640, 268522), (710, 242048), (976, 176080), (992, 173240), (1136, 151280), (1220, 140864), (1240, 138592), (1280, 134261), (1420, 121024), (1891, 90880), (1952, 88040), (1984, 86620), (2201, 78080), (2272, 75640), (2440, 70432), (2480, 69296), (2840, 60512), (3782, 45440), (3904, 44020), (3968, 43310), (4331, 39680), (4402, 39040), (4544, 37820), (4880, 35216), (4960, 34648), (5680, 30256), (7564, 22720), (7808, 22010), (7936, 21655), (8662, 19840), (8804, 19520), (9088, 18910), (9455, 18176), (9760, 17608), (9920, 17324), (11005, 15616), (11360, 15128)]