389625980

素因数分解:

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

素因数の和:459

約数の個数: 96

約数和(自身を含む): 894136320

約数和(自身を除く): 504510340

約数列:

[1, 2, 4, 5, 10, 20, 23, 31, 46, 62, 89, 92, 115, 124, 155, 178, 230, 307, 310, 356, 445, 460, 614, 620, 713, 890, 1228, 1426, 1535, 1780, 2047, 2759, 2852, 3070, 3565, 4094, 5518, 6140, 7061, 7130, 8188, 9517, 10235, 11036, 13795, 14122, 14260, 19034, 20470, 27323, 27590, 28244, 35305, 38068, 40940, 47585, 54646, 55180, 63457, 70610, 95170, 109292, 126914, 136615, 141220, 190340, 218891, 253828, 273230, 317285, 437782, 546460, 628429, 634570, 847013, 875564, 1094455, 1256858, 1269140, 1694026, 2188910, 2513716, 3142145, 3388052, 4235065, 4377820, 6284290, 8470130, 12568580, 16940260, 19481299, 38962598, 77925196, 97406495, 194812990, 389625980]

約数ペア:

[(1, 389625980), (2, 194812990), (4, 97406495), (5, 77925196), (10, 38962598), (20, 19481299), (23, 16940260), (31, 12568580), (46, 8470130), (62, 6284290), (89, 4377820), (92, 4235065), (115, 3388052), (124, 3142145), (155, 2513716), (178, 2188910), (230, 1694026), (307, 1269140), (310, 1256858), (356, 1094455), (445, 875564), (460, 847013), (614, 634570), (620, 628429), (713, 546460), (890, 437782), (1228, 317285), (1426, 273230), (1535, 253828), (1780, 218891), (2047, 190340), (2759, 141220), (2852, 136615), (3070, 126914), (3565, 109292), (4094, 95170), (5518, 70610), (6140, 63457), (7061, 55180), (7130, 54646), (8188, 47585), (9517, 40940), (10235, 38068), (11036, 35305), (13795, 28244), (14122, 27590), (14260, 27323), (19034, 20470)]