20974100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{83}}^1$

素因数の和:142

約数の個数: 108

約数和(自身を含む): 55558944

約数和(自身を除く): 34584844

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 25, 28, 35, 38, 50, 70, 76, 83, 95, 100, 133, 140, 166, 175, 190, 266, 332, 350, 361, 380, 415, 475, 532, 581, 665, 700, 722, 830, 950, 1162, 1330, 1444, 1577, 1660, 1805, 1900, 2075, 2324, 2527, 2660, 2905, 3154, 3325, 3610, 4150, 5054, 5810, 6308, 6650, 7220, 7885, 8300, 9025, 10108, 11039, 11620, 12635, 13300, 14525, 15770, 18050, 22078, 25270, 29050, 29963, 31540, 36100, 39425, 44156, 50540, 55195, 58100, 59926, 63175, 78850, 110390, 119852, 126350, 149815, 157700, 209741, 220780, 252700, 275975, 299630, 419482, 551950, 599260, 749075, 838964, 1048705, 1103900, 1498150, 2097410, 2996300, 4194820, 5243525, 10487050, 20974100]

約数ペア:

[(1, 20974100), (2, 10487050), (4, 5243525), (5, 4194820), (7, 2996300), (10, 2097410), (14, 1498150), (19, 1103900), (20, 1048705), (25, 838964), (28, 749075), (35, 599260), (38, 551950), (50, 419482), (70, 299630), (76, 275975), (83, 252700), (95, 220780), (100, 209741), (133, 157700), (140, 149815), (166, 126350), (175, 119852), (190, 110390), (266, 78850), (332, 63175), (350, 59926), (361, 58100), (380, 55195), (415, 50540), (475, 44156), (532, 39425), (581, 36100), (665, 31540), (700, 29963), (722, 29050), (830, 25270), (950, 22078), (1162, 18050), (1330, 15770), (1444, 14525), (1577, 13300), (1660, 12635), (1805, 11620), (1900, 11039), (2075, 10108), (2324, 9025), (2527, 8300), (2660, 7885), (2905, 7220), (3154, 6650), (3325, 6308), (3610, 5810), (4150, 5054)]