27818375

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1$

素因数の和:117

約数の個数: 64

約数和(自身を含む): 42456960

約数和(自身を除く): 14638585

約数列:

[1, 5, 13, 17, 19, 25, 53, 65, 85, 95, 125, 221, 247, 265, 323, 325, 425, 475, 689, 901, 1007, 1105, 1235, 1325, 1615, 1625, 2125, 2375, 3445, 4199, 4505, 5035, 5525, 6175, 6625, 8075, 11713, 13091, 17119, 17225, 20995, 22525, 25175, 27625, 30875, 40375, 58565, 65455, 85595, 86125, 104975, 112625, 125875, 222547, 292825, 327275, 427975, 524875, 1112735, 1464125, 1636375, 2139875, 5563675, 27818375]

約数ペア:

[(1, 27818375), (5, 5563675), (13, 2139875), (17, 1636375), (19, 1464125), (25, 1112735), (53, 524875), (65, 427975), (85, 327275), (95, 292825), (125, 222547), (221, 125875), (247, 112625), (265, 104975), (323, 86125), (325, 85595), (425, 65455), (475, 58565), (689, 40375), (901, 30875), (1007, 27625), (1105, 25175), (1235, 22525), (1325, 20995), (1615, 17225), (1625, 17119), (2125, 13091), (2375, 11713), (3445, 8075), (4199, 6625), (4505, 6175), (5035, 5525)]