20050700

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{173}}^1$

素因数の和:267

約数の個数: 72

約数和(自身を含む): 46819920

約数和(自身を除く): 26769220

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 61, 76, 95, 100, 122, 173, 190, 244, 305, 346, 380, 475, 610, 692, 865, 950, 1159, 1220, 1525, 1730, 1900, 2318, 3050, 3287, 3460, 4325, 4636, 5795, 6100, 6574, 8650, 10553, 11590, 13148, 16435, 17300, 21106, 23180, 28975, 32870, 42212, 52765, 57950, 65740, 82175, 105530, 115900, 164350, 200507, 211060, 263825, 328700, 401014, 527650, 802028, 1002535, 1055300, 2005070, 4010140, 5012675, 10025350, 20050700]

約数ペア:

[(1, 20050700), (2, 10025350), (4, 5012675), (5, 4010140), (10, 2005070), (19, 1055300), (20, 1002535), (25, 802028), (38, 527650), (50, 401014), (61, 328700), (76, 263825), (95, 211060), (100, 200507), (122, 164350), (173, 115900), (190, 105530), (244, 82175), (305, 65740), (346, 57950), (380, 52765), (475, 42212), (610, 32870), (692, 28975), (865, 23180), (950, 21106), (1159, 17300), (1220, 16435), (1525, 13148), (1730, 11590), (1900, 10553), (2318, 8650), (3050, 6574), (3287, 6100), (3460, 5795), (4325, 4636)]