19685820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{4261}}^1$

素因数の和:4291

約数の個数: 96

約数和(自身を含む): 68737536

約数和(自身を除く): 49051716

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 42, 44, 55, 60, 66, 70, 77, 84, 105, 110, 132, 140, 154, 165, 210, 220, 231, 308, 330, 385, 420, 462, 660, 770, 924, 1155, 1540, 2310, 4261, 4620, 8522, 12783, 17044, 21305, 25566, 29827, 42610, 46871, 51132, 59654, 63915, 85220, 89481, 93742, 119308, 127830, 140613, 149135, 178962, 187484, 234355, 255660, 281226, 298270, 328097, 357924, 447405, 468710, 562452, 596540, 656194, 703065, 894810, 937420, 984291, 1312388, 1406130, 1640485, 1789620, 1968582, 2812260, 3280970, 3937164, 4921455, 6561940, 9842910, 19685820]

約数ペア:

[(1, 19685820), (2, 9842910), (3, 6561940), (4, 4921455), (5, 3937164), (6, 3280970), (7, 2812260), (10, 1968582), (11, 1789620), (12, 1640485), (14, 1406130), (15, 1312388), (20, 984291), (21, 937420), (22, 894810), (28, 703065), (30, 656194), (33, 596540), (35, 562452), (42, 468710), (44, 447405), (55, 357924), (60, 328097), (66, 298270), (70, 281226), (77, 255660), (84, 234355), (105, 187484), (110, 178962), (132, 149135), (140, 140613), (154, 127830), (165, 119308), (210, 93742), (220, 89481), (231, 85220), (308, 63915), (330, 59654), (385, 51132), (420, 46871), (462, 42610), (660, 29827), (770, 25566), (924, 21305), (1155, 17044), (1540, 12783), (2310, 8522), (4261, 4620)]