20722770

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:157

約数の個数: 128

約数和(自身を含む): 59719680

約数和(自身を除く): 38996910

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 27, 30, 45, 46, 47, 54, 69, 71, 90, 94, 115, 135, 138, 141, 142, 207, 213, 230, 235, 270, 282, 345, 355, 414, 423, 426, 470, 621, 639, 690, 705, 710, 846, 1035, 1065, 1081, 1242, 1269, 1278, 1410, 1633, 1917, 2070, 2115, 2130, 2162, 2538, 3105, 3195, 3243, 3266, 3337, 3834, 4230, 4899, 5405, 6210, 6345, 6390, 6486, 6674, 8165, 9585, 9729, 9798, 10011, 10810, 12690, 14697, 16215, 16330, 16685, 19170, 19458, 20022, 24495, 29187, 29394, 30033, 32430, 33370, 44091, 48645, 48990, 50055, 58374, 60066, 73485, 76751, 88182, 90099, 97290, 100110, 145935, 146970, 150165, 153502, 180198, 220455, 230253, 291870, 300330, 383755, 440910, 450495, 460506, 690759, 767510, 900990, 1151265, 1381518, 2072277, 2302530, 3453795, 4144554, 6907590, 10361385, 20722770]

約数ペア:

[(1, 20722770), (2, 10361385), (3, 6907590), (5, 4144554), (6, 3453795), (9, 2302530), (10, 2072277), (15, 1381518), (18, 1151265), (23, 900990), (27, 767510), (30, 690759), (45, 460506), (46, 450495), (47, 440910), (54, 383755), (69, 300330), (71, 291870), (90, 230253), (94, 220455), (115, 180198), (135, 153502), (138, 150165), (141, 146970), (142, 145935), (207, 100110), (213, 97290), (230, 90099), (235, 88182), (270, 76751), (282, 73485), (345, 60066), (355, 58374), (414, 50055), (423, 48990), (426, 48645), (470, 44091), (621, 33370), (639, 32430), (690, 30033), (705, 29394), (710, 29187), (846, 24495), (1035, 20022), (1065, 19458), (1081, 19170), (1242, 16685), (1269, 16330), (1278, 16215), (1410, 14697), (1633, 12690), (1917, 10810), (2070, 10011), (2115, 9798), (2130, 9729), (2162, 9585), (2538, 8165), (3105, 6674), (3195, 6486), (3243, 6390), (3266, 6345), (3337, 6210), (3834, 5405), (4230, 4899)]