816375560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{20389}}^1$

素因数の和:20431

約数の個数: 128

約数和(自身を含む): 2466374400

約数和(自身を除く): 1649998840

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 20, 22, 26, 28, 35, 40, 44, 52, 55, 56, 65, 70, 77, 88, 91, 104, 110, 130, 140, 143, 154, 182, 220, 260, 280, 286, 308, 364, 385, 440, 455, 520, 572, 616, 715, 728, 770, 910, 1001, 1144, 1430, 1540, 1820, 2002, 2860, 3080, 3640, 4004, 5005, 5720, 8008, 10010, 20020, 20389, 40040, 40778, 81556, 101945, 142723, 163112, 203890, 224279, 265057, 285446, 407780, 448558, 530114, 570892, 713615, 815560, 897116, 1060228, 1121395, 1141784, 1325285, 1427230, 1569953, 1794232, 1855399, 2120456, 2242790, 2650570, 2854460, 2915627, 3139906, 3710798, 4485580, 5301140, 5708920, 5831254, 6279812, 7421596, 7849765, 8971160, 9276995, 10602280, 11662508, 12559624, 14578135, 14843192, 15699530, 18553990, 20409389, 23325016, 29156270, 31399060, 37107980, 40818778, 58312540, 62798120, 74215960, 81637556, 102046945, 116625080, 163275112, 204093890, 408187780, 816375560]

約数ペア:

[(1, 816375560), (2, 408187780), (4, 204093890), (5, 163275112), (7, 116625080), (8, 102046945), (10, 81637556), (11, 74215960), (13, 62798120), (14, 58312540), (20, 40818778), (22, 37107980), (26, 31399060), (28, 29156270), (35, 23325016), (40, 20409389), (44, 18553990), (52, 15699530), (55, 14843192), (56, 14578135), (65, 12559624), (70, 11662508), (77, 10602280), (88, 9276995), (91, 8971160), (104, 7849765), (110, 7421596), (130, 6279812), (140, 5831254), (143, 5708920), (154, 5301140), (182, 4485580), (220, 3710798), (260, 3139906), (280, 2915627), (286, 2854460), (308, 2650570), (364, 2242790), (385, 2120456), (440, 1855399), (455, 1794232), (520, 1569953), (572, 1427230), (616, 1325285), (715, 1141784), (728, 1121395), (770, 1060228), (910, 897116), (1001, 815560), (1144, 713615), (1430, 570892), (1540, 530114), (1820, 448558), (2002, 407780), (2860, 285446), (3080, 265057), (3640, 224279), (4004, 203890), (5005, 163112), (5720, 142723), (8008, 101945), (10010, 81556), (20020, 40778), (20389, 40040)]