161877100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{21023}}^1$

素因数の和:21055

約数の個数: 72

約数和(自身を含む): 437971968

約数和(自身を除く): 276094868

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 25, 28, 35, 44, 50, 55, 70, 77, 100, 110, 140, 154, 175, 220, 275, 308, 350, 385, 550, 700, 770, 1100, 1540, 1925, 3850, 7700, 21023, 42046, 84092, 105115, 147161, 210230, 231253, 294322, 420460, 462506, 525575, 588644, 735805, 925012, 1051150, 1156265, 1471610, 1618771, 2102300, 2312530, 2943220, 3237542, 3679025, 4625060, 5781325, 6475084, 7358050, 8093855, 11562650, 14716100, 16187710, 23125300, 32375420, 40469275, 80938550, 161877100]

約数ペア:

[(1, 161877100), (2, 80938550), (4, 40469275), (5, 32375420), (7, 23125300), (10, 16187710), (11, 14716100), (14, 11562650), (20, 8093855), (22, 7358050), (25, 6475084), (28, 5781325), (35, 4625060), (44, 3679025), (50, 3237542), (55, 2943220), (70, 2312530), (77, 2102300), (100, 1618771), (110, 1471610), (140, 1156265), (154, 1051150), (175, 925012), (220, 735805), (275, 588644), (308, 525575), (350, 462506), (385, 420460), (550, 294322), (700, 231253), (770, 210230), (1100, 147161), (1540, 105115), (1925, 84092), (3850, 42046), (7700, 21023)]