779251960

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{307}}^1$

素因数の和:461

約数の個数: 128

約数和(自身を含む): 1916006400

約数和(自身を除く): 1136754440

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 31, 40, 46, 62, 89, 92, 115, 124, 155, 178, 184, 230, 248, 307, 310, 356, 445, 460, 614, 620, 712, 713, 890, 920, 1228, 1240, 1426, 1535, 1780, 2047, 2456, 2759, 2852, 3070, 3560, 3565, 4094, 5518, 5704, 6140, 7061, 7130, 8188, 9517, 10235, 11036, 12280, 13795, 14122, 14260, 16376, 19034, 20470, 22072, 27323, 27590, 28244, 28520, 35305, 38068, 40940, 47585, 54646, 55180, 56488, 63457, 70610, 76136, 81880, 95170, 109292, 110360, 126914, 136615, 141220, 190340, 218584, 218891, 253828, 273230, 282440, 317285, 380680, 437782, 507656, 546460, 628429, 634570, 847013, 875564, 1092920, 1094455, 1256858, 1269140, 1694026, 1751128, 2188910, 2513716, 2538280, 3142145, 3388052, 4235065, 4377820, 5027432, 6284290, 6776104, 8470130, 8755640, 12568580, 16940260, 19481299, 25137160, 33880520, 38962598, 77925196, 97406495, 155850392, 194812990, 389625980, 779251960]

約数ペア:

[(1, 779251960), (2, 389625980), (4, 194812990), (5, 155850392), (8, 97406495), (10, 77925196), (20, 38962598), (23, 33880520), (31, 25137160), (40, 19481299), (46, 16940260), (62, 12568580), (89, 8755640), (92, 8470130), (115, 6776104), (124, 6284290), (155, 5027432), (178, 4377820), (184, 4235065), (230, 3388052), (248, 3142145), (307, 2538280), (310, 2513716), (356, 2188910), (445, 1751128), (460, 1694026), (614, 1269140), (620, 1256858), (712, 1094455), (713, 1092920), (890, 875564), (920, 847013), (1228, 634570), (1240, 628429), (1426, 546460), (1535, 507656), (1780, 437782), (2047, 380680), (2456, 317285), (2759, 282440), (2852, 273230), (3070, 253828), (3560, 218891), (3565, 218584), (4094, 190340), (5518, 141220), (5704, 136615), (6140, 126914), (7061, 110360), (7130, 109292), (8188, 95170), (9517, 81880), (10235, 76136), (11036, 70610), (12280, 63457), (13795, 56488), (14122, 55180), (14260, 54646), (16376, 47585), (19034, 40940), (20470, 38068), (22072, 35305), (27323, 28520), (27590, 28244)]