40728358

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:205

約数の個数: 48

約数和(自身を含む): 71245440

約数和(自身を除く): 30517082

約数列:

[1, 2, 11, 22, 31, 61, 62, 89, 121, 122, 178, 242, 341, 671, 682, 979, 1342, 1891, 1958, 2759, 3751, 3782, 5429, 5518, 7381, 7502, 10769, 10858, 14762, 20801, 21538, 30349, 41602, 59719, 60698, 119438, 168299, 228811, 333839, 336598, 457622, 656909, 667678, 1313818, 1851289, 3702578, 20364179, 40728358]

約数ペア:

[(1, 40728358), (2, 20364179), (11, 3702578), (22, 1851289), (31, 1313818), (61, 667678), (62, 656909), (89, 457622), (121, 336598), (122, 333839), (178, 228811), (242, 168299), (341, 119438), (671, 60698), (682, 59719), (979, 41602), (1342, 30349), (1891, 21538), (1958, 20801), (2759, 14762), (3751, 10858), (3782, 10769), (5429, 7502), (5518, 7381)]