18037420

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{227}}^1$

素因数の和:402

約数の個数: 48

約数和(自身を含む): 39644640

約数和(自身を除く): 21607220

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 137, 145, 227, 274, 290, 454, 548, 580, 685, 908, 1135, 1370, 2270, 2740, 3973, 4540, 6583, 7946, 13166, 15892, 19865, 26332, 31099, 32915, 39730, 62198, 65830, 79460, 124396, 131660, 155495, 310990, 621980, 901871, 1803742, 3607484, 4509355, 9018710, 18037420]

約数ペア:

[(1, 18037420), (2, 9018710), (4, 4509355), (5, 3607484), (10, 1803742), (20, 901871), (29, 621980), (58, 310990), (116, 155495), (137, 131660), (145, 124396), (227, 79460), (274, 65830), (290, 62198), (454, 39730), (548, 32915), (580, 31099), (685, 26332), (908, 19865), (1135, 15892), (1370, 13166), (2270, 7946), (2740, 6583), (3973, 4540)]