78235220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{4079}}^1$

素因数の和:4232

約数の個数: 48

約数和(自身を含む): 189181440

約数和(自身を除く): 110946220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 137, 140, 274, 548, 685, 959, 1370, 1918, 2740, 3836, 4079, 4795, 8158, 9590, 16316, 19180, 20395, 28553, 40790, 57106, 81580, 114212, 142765, 285530, 558823, 571060, 1117646, 2235292, 2794115, 3911761, 5588230, 7823522, 11176460, 15647044, 19558805, 39117610, 78235220]

約数ペア:

[(1, 78235220), (2, 39117610), (4, 19558805), (5, 15647044), (7, 11176460), (10, 7823522), (14, 5588230), (20, 3911761), (28, 2794115), (35, 2235292), (70, 1117646), (137, 571060), (140, 558823), (274, 285530), (548, 142765), (685, 114212), (959, 81580), (1370, 57106), (1918, 40790), (2740, 28553), (3836, 20395), (4079, 19180), (4795, 16316), (8158, 9590)]