20003928

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{167}}^1$

素因数の和:237

約数の個数: 128

約数和(自身を含む): 61931520

約数和(自身を除く): 41927592

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 23, 24, 28, 31, 42, 46, 56, 62, 69, 84, 92, 93, 124, 138, 161, 167, 168, 184, 186, 217, 248, 276, 322, 334, 372, 434, 483, 501, 552, 644, 651, 668, 713, 744, 868, 966, 1002, 1169, 1288, 1302, 1336, 1426, 1736, 1932, 2004, 2139, 2338, 2604, 2852, 3507, 3841, 3864, 4008, 4278, 4676, 4991, 5177, 5208, 5704, 7014, 7682, 8556, 9352, 9982, 10354, 11523, 14028, 14973, 15364, 15531, 17112, 19964, 20708, 23046, 26887, 28056, 29946, 30728, 31062, 36239, 39928, 41416, 46092, 53774, 59892, 62124, 72478, 80661, 92184, 107548, 108717, 119071, 119784, 124248, 144956, 161322, 215096, 217434, 238142, 289912, 322644, 357213, 434868, 476284, 645288, 714426, 833497, 869736, 952568, 1428852, 1666994, 2500491, 2857704, 3333988, 5000982, 6667976, 10001964, 20003928]

約数ペア:

[(1, 20003928), (2, 10001964), (3, 6667976), (4, 5000982), (6, 3333988), (7, 2857704), (8, 2500491), (12, 1666994), (14, 1428852), (21, 952568), (23, 869736), (24, 833497), (28, 714426), (31, 645288), (42, 476284), (46, 434868), (56, 357213), (62, 322644), (69, 289912), (84, 238142), (92, 217434), (93, 215096), (124, 161322), (138, 144956), (161, 124248), (167, 119784), (168, 119071), (184, 108717), (186, 107548), (217, 92184), (248, 80661), (276, 72478), (322, 62124), (334, 59892), (372, 53774), (434, 46092), (483, 41416), (501, 39928), (552, 36239), (644, 31062), (651, 30728), (668, 29946), (713, 28056), (744, 26887), (868, 23046), (966, 20708), (1002, 19964), (1169, 17112), (1288, 15531), (1302, 15364), (1336, 14973), (1426, 14028), (1736, 11523), (1932, 10354), (2004, 9982), (2139, 9352), (2338, 8556), (2604, 7682), (2852, 7014), (3507, 5704), (3841, 5208), (3864, 5177), (4008, 4991), (4278, 4676)]