27998390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1$

素因数の和:237

約数の個数: 64

約数和(自身を含む): 59996160

約数和(自身を除く): 31997770

約数列:

[1, 2, 5, 7, 10, 14, 35, 61, 70, 79, 83, 122, 158, 166, 305, 395, 415, 427, 553, 581, 610, 790, 830, 854, 1106, 1162, 2135, 2765, 2905, 4270, 4819, 5063, 5530, 5810, 6557, 9638, 10126, 13114, 24095, 25315, 32785, 33733, 35441, 45899, 48190, 50630, 65570, 67466, 70882, 91798, 168665, 177205, 229495, 337330, 354410, 399977, 458990, 799954, 1999885, 2799839, 3999770, 5599678, 13999195, 27998390]

約数ペア:

[(1, 27998390), (2, 13999195), (5, 5599678), (7, 3999770), (10, 2799839), (14, 1999885), (35, 799954), (61, 458990), (70, 399977), (79, 354410), (83, 337330), (122, 229495), (158, 177205), (166, 168665), (305, 91798), (395, 70882), (415, 67466), (427, 65570), (553, 50630), (581, 48190), (610, 45899), (790, 35441), (830, 33733), (854, 32785), (1106, 25315), (1162, 24095), (2135, 13114), (2765, 10126), (2905, 9638), (4270, 6557), (4819, 5810), (5063, 5530)]