1318561360

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1\times {\mathrm{1721}}^1$

素因数の和:1952

約数の個数: 80

約数和(自身を含む): 3137580432

約数和(自身を除く): 1819019072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 157, 244, 305, 314, 488, 610, 628, 785, 976, 1220, 1256, 1570, 1721, 2440, 2512, 3140, 3442, 4880, 6280, 6884, 8605, 9577, 12560, 13768, 17210, 19154, 27536, 34420, 38308, 47885, 68840, 76616, 95770, 104981, 137680, 153232, 191540, 209962, 270197, 383080, 419924, 524905, 540394, 766160, 839848, 1049810, 1080788, 1350985, 1679696, 2099620, 2161576, 2701970, 4199240, 4323152, 5403940, 8398480, 10807880, 16482017, 21615760, 32964034, 65928068, 82410085, 131856136, 164820170, 263712272, 329640340, 659280680, 1318561360]

約数ペア:

[(1, 1318561360), (2, 659280680), (4, 329640340), (5, 263712272), (8, 164820170), (10, 131856136), (16, 82410085), (20, 65928068), (40, 32964034), (61, 21615760), (80, 16482017), (122, 10807880), (157, 8398480), (244, 5403940), (305, 4323152), (314, 4199240), (488, 2701970), (610, 2161576), (628, 2099620), (785, 1679696), (976, 1350985), (1220, 1080788), (1256, 1049810), (1570, 839848), (1721, 766160), (2440, 540394), (2512, 524905), (3140, 419924), (3442, 383080), (4880, 270197), (6280, 209962), (6884, 191540), (8605, 153232), (9577, 137680), (12560, 104981), (13768, 95770), (17210, 76616), (19154, 68840), (27536, 47885), (34420, 38308)]