80368120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{197}}^1$

素因数の和:293

約数の個数: 128

約数和(自身を含む): 218972160

約数和(自身を除く): 138604040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 47, 56, 62, 70, 94, 124, 140, 155, 188, 197, 217, 235, 248, 280, 310, 329, 376, 394, 434, 470, 620, 658, 788, 868, 940, 985, 1085, 1240, 1316, 1379, 1457, 1576, 1645, 1736, 1880, 1970, 2170, 2632, 2758, 2914, 3290, 3940, 4340, 5516, 5828, 6107, 6580, 6895, 7285, 7880, 8680, 9259, 10199, 11032, 11656, 12214, 13160, 13790, 14570, 18518, 20398, 24428, 27580, 29140, 30535, 37036, 40796, 42749, 46295, 48856, 50995, 55160, 58280, 61070, 64813, 74072, 81592, 85498, 92590, 101990, 122140, 129626, 170996, 185180, 203980, 213745, 244280, 259252, 287029, 324065, 341992, 370360, 407960, 427490, 518504, 574058, 648130, 854980, 1148116, 1296260, 1435145, 1709960, 2009203, 2296232, 2592520, 2870290, 4018406, 5740580, 8036812, 10046015, 11481160, 16073624, 20092030, 40184060, 80368120]

約数ペア:

[(1, 80368120), (2, 40184060), (4, 20092030), (5, 16073624), (7, 11481160), (8, 10046015), (10, 8036812), (14, 5740580), (20, 4018406), (28, 2870290), (31, 2592520), (35, 2296232), (40, 2009203), (47, 1709960), (56, 1435145), (62, 1296260), (70, 1148116), (94, 854980), (124, 648130), (140, 574058), (155, 518504), (188, 427490), (197, 407960), (217, 370360), (235, 341992), (248, 324065), (280, 287029), (310, 259252), (329, 244280), (376, 213745), (394, 203980), (434, 185180), (470, 170996), (620, 129626), (658, 122140), (788, 101990), (868, 92590), (940, 85498), (985, 81592), (1085, 74072), (1240, 64813), (1316, 61070), (1379, 58280), (1457, 55160), (1576, 50995), (1645, 48856), (1736, 46295), (1880, 42749), (1970, 40796), (2170, 37036), (2632, 30535), (2758, 29140), (2914, 27580), (3290, 24428), (3940, 20398), (4340, 18518), (5516, 14570), (5828, 13790), (6107, 13160), (6580, 12214), (6895, 11656), (7285, 11032), (7880, 10199), (8680, 9259)]