15557720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{167}}^1$

素因数の和:332

約数の個数: 64

約数和(自身を含む): 37558080

約数和(自身を除く): 22000360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 137, 167, 170, 274, 334, 340, 548, 668, 680, 685, 835, 1096, 1336, 1370, 1670, 2329, 2740, 2839, 3340, 4658, 5480, 5678, 6680, 9316, 11356, 11645, 14195, 18632, 22712, 22879, 23290, 28390, 45758, 46580, 56780, 91516, 93160, 113560, 114395, 183032, 228790, 388943, 457580, 777886, 915160, 1555772, 1944715, 3111544, 3889430, 7778860, 15557720]

約数ペア:

[(1, 15557720), (2, 7778860), (4, 3889430), (5, 3111544), (8, 1944715), (10, 1555772), (17, 915160), (20, 777886), (34, 457580), (40, 388943), (68, 228790), (85, 183032), (136, 114395), (137, 113560), (167, 93160), (170, 91516), (274, 56780), (334, 46580), (340, 45758), (548, 28390), (668, 23290), (680, 22879), (685, 22712), (835, 18632), (1096, 14195), (1336, 11645), (1370, 11356), (1670, 9316), (2329, 6680), (2740, 5678), (2839, 5480), (3340, 4658)]