78836225

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{751}}^1$

素因数の和:810

約数の個数: 48

約数和(自身を含む): 117492480

約数和(自身を除く): 38656255

約数列:

[1, 5, 13, 17, 19, 25, 65, 85, 95, 221, 247, 323, 325, 425, 475, 751, 1105, 1235, 1615, 3755, 4199, 5525, 6175, 8075, 9763, 12767, 14269, 18775, 20995, 48815, 63835, 71345, 104975, 165971, 185497, 242573, 244075, 319175, 356725, 829855, 927485, 1212865, 3153449, 4149275, 4637425, 6064325, 15767245, 78836225]

約数ペア:

[(1, 78836225), (5, 15767245), (13, 6064325), (17, 4637425), (19, 4149275), (25, 3153449), (65, 1212865), (85, 927485), (95, 829855), (221, 356725), (247, 319175), (323, 244075), (325, 242573), (425, 185497), (475, 165971), (751, 104975), (1105, 71345), (1235, 63835), (1615, 48815), (3755, 20995), (4199, 18775), (5525, 14269), (6175, 12767), (8075, 9763)]