215448590

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{23}}^1\times {\mathrm{2731}}^1$

素因数の和:2782

約数の個数: 64

約数和(自身を含む): 472089600

約数和(自身を除く): 256641010

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 46, 49, 70, 98, 115, 161, 230, 245, 322, 343, 490, 686, 805, 1127, 1610, 1715, 2254, 2731, 3430, 5462, 5635, 7889, 11270, 13655, 15778, 19117, 27310, 38234, 39445, 62813, 78890, 95585, 125626, 133819, 191170, 267638, 314065, 439691, 628130, 669095, 879382, 936733, 1338190, 1873466, 2198455, 3077837, 4396910, 4683665, 6155674, 9367330, 15389185, 21544859, 30778370, 43089718, 107724295, 215448590]

約数ペア:

[(1, 215448590), (2, 107724295), (5, 43089718), (7, 30778370), (10, 21544859), (14, 15389185), (23, 9367330), (35, 6155674), (46, 4683665), (49, 4396910), (70, 3077837), (98, 2198455), (115, 1873466), (161, 1338190), (230, 936733), (245, 879382), (322, 669095), (343, 628130), (490, 439691), (686, 314065), (805, 267638), (1127, 191170), (1610, 133819), (1715, 125626), (2254, 95585), (2731, 78890), (3430, 62813), (5462, 39445), (5635, 38234), (7889, 27310), (11270, 19117), (13655, 15778)]