20547821420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1873}}^1\times {\mathrm{3407}}^1$

素因数の和:5319

約数の個数: 96

約数和(自身を含む): 51501477888

約数和(自身を除く): 30953656468

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 1873, 3220, 3407, 3746, 6814, 7492, 9365, 13111, 13628, 17035, 18730, 23849, 26222, 34070, 37460, 43079, 47698, 52444, 65555, 68140, 78361, 86158, 95396, 119245, 131110, 156722, 172316, 215395, 238490, 262220, 301553, 313444, 391805, 430790, 476980, 548527, 603106, 783610, 861580, 1097054, 1206212, 1507765, 1567220, 2194108, 2742635, 3015530, 5485270, 6031060, 6381311, 10970540, 12762622, 25525244, 31906555, 44669177, 63813110, 89338354, 127626220, 146770153, 178676708, 223345885, 293540306, 446691770, 587080612, 733850765, 893383540, 1027391071, 1467701530, 2054782142, 2935403060, 4109564284, 5136955355, 10273910710, 20547821420]

約数ペア:

[(1, 20547821420), (2, 10273910710), (4, 5136955355), (5, 4109564284), (7, 2935403060), (10, 2054782142), (14, 1467701530), (20, 1027391071), (23, 893383540), (28, 733850765), (35, 587080612), (46, 446691770), (70, 293540306), (92, 223345885), (115, 178676708), (140, 146770153), (161, 127626220), (230, 89338354), (322, 63813110), (460, 44669177), (644, 31906555), (805, 25525244), (1610, 12762622), (1873, 10970540), (3220, 6381311), (3407, 6031060), (3746, 5485270), (6814, 3015530), (7492, 2742635), (9365, 2194108), (13111, 1567220), (13628, 1507765), (17035, 1206212), (18730, 1097054), (23849, 861580), (26222, 783610), (34070, 603106), (37460, 548527), (43079, 476980), (47698, 430790), (52444, 391805), (65555, 313444), (68140, 301553), (78361, 262220), (86158, 238490), (95396, 215395), (119245, 172316), (131110, 156722)]