28520520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1787}}^1$

素因数の和:1827

約数の個数: 128

約数和(自身を含む): 102988800

約数和(自身を除く): 74468280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 19, 20, 21, 24, 28, 30, 35, 38, 40, 42, 56, 57, 60, 70, 76, 84, 95, 105, 114, 120, 133, 140, 152, 168, 190, 210, 228, 266, 280, 285, 380, 399, 420, 456, 532, 570, 665, 760, 798, 840, 1064, 1140, 1330, 1596, 1787, 1995, 2280, 2660, 3192, 3574, 3990, 5320, 5361, 7148, 7980, 8935, 10722, 12509, 14296, 15960, 17870, 21444, 25018, 26805, 33953, 35740, 37527, 42888, 50036, 53610, 62545, 67906, 71480, 75054, 100072, 101859, 107220, 125090, 135812, 150108, 169765, 187635, 203718, 214440, 237671, 250180, 271624, 300216, 339530, 375270, 407436, 475342, 500360, 509295, 679060, 713013, 750540, 814872, 950684, 1018590, 1188355, 1358120, 1426026, 1501080, 1901368, 2037180, 2376710, 2852052, 3565065, 4074360, 4753420, 5704104, 7130130, 9506840, 14260260, 28520520]

約数ペア:

[(1, 28520520), (2, 14260260), (3, 9506840), (4, 7130130), (5, 5704104), (6, 4753420), (7, 4074360), (8, 3565065), (10, 2852052), (12, 2376710), (14, 2037180), (15, 1901368), (19, 1501080), (20, 1426026), (21, 1358120), (24, 1188355), (28, 1018590), (30, 950684), (35, 814872), (38, 750540), (40, 713013), (42, 679060), (56, 509295), (57, 500360), (60, 475342), (70, 407436), (76, 375270), (84, 339530), (95, 300216), (105, 271624), (114, 250180), (120, 237671), (133, 214440), (140, 203718), (152, 187635), (168, 169765), (190, 150108), (210, 135812), (228, 125090), (266, 107220), (280, 101859), (285, 100072), (380, 75054), (399, 71480), (420, 67906), (456, 62545), (532, 53610), (570, 50036), (665, 42888), (760, 37527), (798, 35740), (840, 33953), (1064, 26805), (1140, 25018), (1330, 21444), (1596, 17870), (1787, 15960), (1995, 14296), (2280, 12509), (2660, 10722), (3192, 8935), (3574, 7980), (3990, 7148), (5320, 5361)]