20962700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1$

素因数の和:120

約数の個数: 144

約数和(自身を含む): 56246400

約数和(自身を除く): 35283700

約数列:

[1, 2, 4, 5, 10, 11, 17, 19, 20, 22, 25, 34, 38, 44, 50, 55, 59, 68, 76, 85, 95, 100, 110, 118, 170, 187, 190, 209, 220, 236, 275, 295, 323, 340, 374, 380, 418, 425, 475, 550, 590, 646, 649, 748, 836, 850, 935, 950, 1003, 1045, 1100, 1121, 1180, 1292, 1298, 1475, 1615, 1700, 1870, 1900, 2006, 2090, 2242, 2596, 2950, 3230, 3245, 3553, 3740, 4012, 4180, 4484, 4675, 5015, 5225, 5605, 5900, 6460, 6490, 7106, 8075, 9350, 10030, 10450, 11033, 11210, 12331, 12980, 14212, 16150, 16225, 17765, 18700, 19057, 20060, 20900, 22066, 22420, 24662, 25075, 28025, 32300, 32450, 35530, 38114, 44132, 49324, 50150, 55165, 56050, 61655, 64900, 71060, 76228, 88825, 95285, 100300, 110330, 112100, 123310, 177650, 190570, 209627, 220660, 246620, 275825, 308275, 355300, 381140, 419254, 476425, 551650, 616550, 838508, 952850, 1048135, 1103300, 1233100, 1905700, 2096270, 4192540, 5240675, 10481350, 20962700]

約数ペア:

[(1, 20962700), (2, 10481350), (4, 5240675), (5, 4192540), (10, 2096270), (11, 1905700), (17, 1233100), (19, 1103300), (20, 1048135), (22, 952850), (25, 838508), (34, 616550), (38, 551650), (44, 476425), (50, 419254), (55, 381140), (59, 355300), (68, 308275), (76, 275825), (85, 246620), (95, 220660), (100, 209627), (110, 190570), (118, 177650), (170, 123310), (187, 112100), (190, 110330), (209, 100300), (220, 95285), (236, 88825), (275, 76228), (295, 71060), (323, 64900), (340, 61655), (374, 56050), (380, 55165), (418, 50150), (425, 49324), (475, 44132), (550, 38114), (590, 35530), (646, 32450), (649, 32300), (748, 28025), (836, 25075), (850, 24662), (935, 22420), (950, 22066), (1003, 20900), (1045, 20060), (1100, 19057), (1121, 18700), (1180, 17765), (1292, 16225), (1298, 16150), (1475, 14212), (1615, 12980), (1700, 12331), (1870, 11210), (1900, 11033), (2006, 10450), (2090, 10030), (2242, 9350), (2596, 8075), (2950, 7106), (3230, 6490), (3245, 6460), (3553, 5900), (3740, 5605), (4012, 5225), (4180, 5015), (4484, 4675)]