20145785576

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{239671}}^1$

素因数の和:239782

約数の個数: 64

約数和(自身を含む): 46017024000

約数和(自身を除く): 25871238424

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 79, 133, 152, 158, 266, 316, 532, 553, 632, 1064, 1106, 1501, 2212, 3002, 4424, 6004, 10507, 12008, 21014, 42028, 84056, 239671, 479342, 958684, 1677697, 1917368, 3355394, 4553749, 6710788, 9107498, 13421576, 18214996, 18934009, 31876243, 36429992, 37868018, 63752486, 75736036, 127504972, 132538063, 151472072, 255009944, 265076126, 359746171, 530152252, 719492342, 1060304504, 1438984684, 2518223197, 2877969368, 5036446394, 10072892788, 20145785576]

約数ペア:

[(1, 20145785576), (2, 10072892788), (4, 5036446394), (7, 2877969368), (8, 2518223197), (14, 1438984684), (19, 1060304504), (28, 719492342), (38, 530152252), (56, 359746171), (76, 265076126), (79, 255009944), (133, 151472072), (152, 132538063), (158, 127504972), (266, 75736036), (316, 63752486), (532, 37868018), (553, 36429992), (632, 31876243), (1064, 18934009), (1106, 18214996), (1501, 13421576), (2212, 9107498), (3002, 6710788), (4424, 4553749), (6004, 3355394), (10507, 1917368), (12008, 1677697), (21014, 958684), (42028, 479342), (84056, 239671)]