640161744

素因数分解:

$2^4\times 3^1\times {\mathrm{197}}^1\times {\mathrm{67699}}^1$

素因数の和:67907

約数の個数: 40

約数和(自身を含む): 1662170400

約数和(自身を除く): 1022008656

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 197, 394, 591, 788, 1182, 1576, 2364, 3152, 4728, 9456, 67699, 135398, 203097, 270796, 406194, 541592, 812388, 1083184, 1624776, 3249552, 13336703, 26673406, 40010109, 53346812, 80020218, 106693624, 160040436, 213387248, 320080872, 640161744]

約数ペア:

[(1, 640161744), (2, 320080872), (3, 213387248), (4, 160040436), (6, 106693624), (8, 80020218), (12, 53346812), (16, 40010109), (24, 26673406), (48, 13336703), (197, 3249552), (394, 1624776), (591, 1083184), (788, 812388), (1182, 541592), (1576, 406194), (2364, 270796), (3152, 203097), (4728, 135398), (9456, 67699)]