409603940

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{6323}}^1$

素因数の和:6452

約数の個数: 48

約数和(自身を含む): 892442880

約数和(自身を除く): 482838940

約数列:

[1, 2, 4, 5, 10, 20, 41, 79, 82, 158, 164, 205, 316, 395, 410, 790, 820, 1580, 3239, 6323, 6478, 12646, 12956, 16195, 25292, 31615, 32390, 63230, 64780, 126460, 259243, 499517, 518486, 999034, 1036972, 1296215, 1998068, 2497585, 2592430, 4995170, 5184860, 9990340, 20480197, 40960394, 81920788, 102400985, 204801970, 409603940]

約数ペア:

[(1, 409603940), (2, 204801970), (4, 102400985), (5, 81920788), (10, 40960394), (20, 20480197), (41, 9990340), (79, 5184860), (82, 4995170), (158, 2592430), (164, 2497585), (205, 1998068), (316, 1296215), (395, 1036972), (410, 999034), (790, 518486), (820, 499517), (1580, 259243), (3239, 126460), (6323, 64780), (6478, 63230), (12646, 32390), (12956, 31615), (16195, 25292)]