168860720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:259

約数の個数: 160

約数和(自身を含む): 473112576

約数和(自身を除く): 304251856

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 71, 80, 112, 124, 137, 140, 142, 155, 217, 248, 274, 280, 284, 310, 355, 434, 496, 497, 548, 560, 568, 620, 685, 710, 868, 959, 994, 1085, 1096, 1136, 1240, 1370, 1420, 1736, 1918, 1988, 2170, 2192, 2201, 2480, 2485, 2740, 2840, 3472, 3836, 3976, 4247, 4340, 4402, 4795, 4970, 5480, 5680, 7672, 7952, 8494, 8680, 8804, 9590, 9727, 9940, 10960, 11005, 15344, 15407, 16988, 17360, 17608, 19180, 19454, 19880, 21235, 22010, 29729, 30814, 33976, 35216, 38360, 38908, 39760, 42470, 44020, 48635, 59458, 61628, 67952, 68089, 76720, 77035, 77816, 84940, 88040, 97270, 118916, 123256, 136178, 148645, 154070, 155632, 169880, 176080, 194540, 237832, 246512, 272356, 297290, 301537, 308140, 339760, 340445, 389080, 475664, 544712, 594580, 603074, 616280, 680890, 778160, 1089424, 1189160, 1206148, 1232560, 1361780, 1507685, 2110759, 2378320, 2412296, 2723560, 3015370, 4221518, 4824592, 5447120, 6030740, 8443036, 10553795, 12061480, 16886072, 21107590, 24122960, 33772144, 42215180, 84430360, 168860720]

約数ペア:

[(1, 168860720), (2, 84430360), (4, 42215180), (5, 33772144), (7, 24122960), (8, 21107590), (10, 16886072), (14, 12061480), (16, 10553795), (20, 8443036), (28, 6030740), (31, 5447120), (35, 4824592), (40, 4221518), (56, 3015370), (62, 2723560), (70, 2412296), (71, 2378320), (80, 2110759), (112, 1507685), (124, 1361780), (137, 1232560), (140, 1206148), (142, 1189160), (155, 1089424), (217, 778160), (248, 680890), (274, 616280), (280, 603074), (284, 594580), (310, 544712), (355, 475664), (434, 389080), (496, 340445), (497, 339760), (548, 308140), (560, 301537), (568, 297290), (620, 272356), (685, 246512), (710, 237832), (868, 194540), (959, 176080), (994, 169880), (1085, 155632), (1096, 154070), (1136, 148645), (1240, 136178), (1370, 123256), (1420, 118916), (1736, 97270), (1918, 88040), (1988, 84940), (2170, 77816), (2192, 77035), (2201, 76720), (2480, 68089), (2485, 67952), (2740, 61628), (2840, 59458), (3472, 48635), (3836, 44020), (3976, 42470), (4247, 39760), (4340, 38908), (4402, 38360), (4795, 35216), (4970, 33976), (5480, 30814), (5680, 29729), (7672, 22010), (7952, 21235), (8494, 19880), (8680, 19454), (8804, 19180), (9590, 17608), (9727, 17360), (9940, 16988), (10960, 15407), (11005, 15344)]