1918837515

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{167}}^1$

素因数の和:397

約数の個数: 128

約数和(自身を含む): 3852914688

約数和(自身を除く): 1934077173

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 41, 51, 85, 105, 119, 123, 157, 167, 205, 255, 287, 357, 471, 501, 595, 615, 697, 785, 835, 861, 1099, 1169, 1435, 1785, 2091, 2355, 2505, 2669, 2839, 3297, 3485, 3507, 4305, 4879, 5495, 5845, 6437, 6847, 8007, 8517, 10455, 13345, 14195, 14637, 16485, 17535, 18683, 19311, 19873, 20541, 24395, 26219, 32185, 34235, 40035, 42585, 45059, 47929, 56049, 59619, 73185, 78657, 93415, 96555, 99365, 102705, 109429, 116399, 131095, 135177, 143787, 183533, 225295, 239645, 280245, 298095, 328287, 349197, 393285, 445723, 547145, 550599, 581995, 675885, 718935, 766003, 814793, 917665, 1074979, 1337169, 1641435, 1745985, 2228615, 2298009, 2444379, 2752995, 3120061, 3224937, 3830015, 4073965, 5374895, 6685845, 7524853, 9360183, 11490045, 12221895, 15600305, 16124685, 18274643, 22574559, 37624265, 46800915, 54823929, 91373215, 112872795, 127922501, 274119645, 383767503, 639612505, 1918837515]

約数ペア:

[(1, 1918837515), (3, 639612505), (5, 383767503), (7, 274119645), (15, 127922501), (17, 112872795), (21, 91373215), (35, 54823929), (41, 46800915), (51, 37624265), (85, 22574559), (105, 18274643), (119, 16124685), (123, 15600305), (157, 12221895), (167, 11490045), (205, 9360183), (255, 7524853), (287, 6685845), (357, 5374895), (471, 4073965), (501, 3830015), (595, 3224937), (615, 3120061), (697, 2752995), (785, 2444379), (835, 2298009), (861, 2228615), (1099, 1745985), (1169, 1641435), (1435, 1337169), (1785, 1074979), (2091, 917665), (2355, 814793), (2505, 766003), (2669, 718935), (2839, 675885), (3297, 581995), (3485, 550599), (3507, 547145), (4305, 445723), (4879, 393285), (5495, 349197), (5845, 328287), (6437, 298095), (6847, 280245), (8007, 239645), (8517, 225295), (10455, 183533), (13345, 143787), (14195, 135177), (14637, 131095), (16485, 116399), (17535, 109429), (18683, 102705), (19311, 99365), (19873, 96555), (20541, 93415), (24395, 78657), (26219, 73185), (32185, 59619), (34235, 56049), (40035, 47929), (42585, 45059)]