18281428900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{900563}}^1$

素因数の和:900613

約数の個数: 72

約数和(自身を含む): 46901373120

約数和(自身を除く): 28619944220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 29, 35, 50, 58, 70, 100, 116, 140, 145, 175, 203, 290, 350, 406, 580, 700, 725, 812, 1015, 1450, 2030, 2900, 4060, 5075, 10150, 20300, 900563, 1801126, 3602252, 4502815, 6303941, 9005630, 12607882, 18011260, 22514075, 25215764, 26116327, 31519705, 45028150, 52232654, 63039410, 90056300, 104465308, 126078820, 130581635, 157598525, 182814289, 261163270, 315197050, 365628578, 522326540, 630394100, 652908175, 731257156, 914071445, 1305816350, 1828142890, 2611632700, 3656285780, 4570357225, 9140714450, 18281428900]

約数ペア:

[(1, 18281428900), (2, 9140714450), (4, 4570357225), (5, 3656285780), (7, 2611632700), (10, 1828142890), (14, 1305816350), (20, 914071445), (25, 731257156), (28, 652908175), (29, 630394100), (35, 522326540), (50, 365628578), (58, 315197050), (70, 261163270), (100, 182814289), (116, 157598525), (140, 130581635), (145, 126078820), (175, 104465308), (203, 90056300), (290, 63039410), (350, 52232654), (406, 45028150), (580, 31519705), (700, 26116327), (725, 25215764), (812, 22514075), (1015, 18011260), (1450, 12607882), (2030, 9005630), (2900, 6303941), (4060, 4502815), (5075, 3602252), (10150, 1801126), (20300, 900563)]