17988893416

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{128221}}^1$

素因数の和:128330

約数の個数: 64

約数和(自身を含む): 38774332800

約数和(自身を除く): 20785439384

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 71, 76, 104, 142, 152, 247, 284, 494, 568, 923, 988, 1349, 1846, 1976, 2698, 3692, 5396, 7384, 10792, 17537, 35074, 70148, 128221, 140296, 256442, 512884, 1025768, 1666873, 2436199, 3333746, 4872398, 6667492, 9103691, 9744796, 13334984, 18207382, 19489592, 31670587, 36414764, 63341174, 72829528, 118347983, 126682348, 172970129, 236695966, 253364696, 345940258, 473391932, 691880516, 946783864, 1383761032, 2248611677, 4497223354, 8994446708, 17988893416]

約数ペア:

[(1, 17988893416), (2, 8994446708), (4, 4497223354), (8, 2248611677), (13, 1383761032), (19, 946783864), (26, 691880516), (38, 473391932), (52, 345940258), (71, 253364696), (76, 236695966), (104, 172970129), (142, 126682348), (152, 118347983), (247, 72829528), (284, 63341174), (494, 36414764), (568, 31670587), (923, 19489592), (988, 18207382), (1349, 13334984), (1846, 9744796), (1976, 9103691), (2698, 6667492), (3692, 4872398), (5396, 3333746), (7384, 2436199), (10792, 1666873), (17537, 1025768), (35074, 512884), (70148, 256442), (128221, 140296)]