877898980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{197}}^1\times {\mathrm{229}}^1$

素因数の和:581

約数の個数: 96

約数和(自身を含む): 2142201600

約数和(自身を除く): 1264302620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 197, 229, 278, 394, 458, 556, 695, 788, 916, 973, 985, 1145, 1379, 1390, 1603, 1946, 1970, 2290, 2758, 2780, 3206, 3892, 3940, 4580, 4865, 5516, 6412, 6895, 8015, 9730, 13790, 16030, 19460, 27383, 27580, 31831, 32060, 45113, 54766, 63662, 90226, 109532, 127324, 136915, 159155, 180452, 191681, 222817, 225565, 273830, 315791, 318310, 383362, 445634, 451130, 547660, 631582, 636620, 766724, 891268, 902260, 958405, 1114085, 1263164, 1578955, 1916810, 2228170, 3157910, 3833620, 4456340, 6270707, 6315820, 12541414, 25082828, 31353535, 43894949, 62707070, 87789898, 125414140, 175579796, 219474745, 438949490, 877898980]

約数ペア:

[(1, 877898980), (2, 438949490), (4, 219474745), (5, 175579796), (7, 125414140), (10, 87789898), (14, 62707070), (20, 43894949), (28, 31353535), (35, 25082828), (70, 12541414), (139, 6315820), (140, 6270707), (197, 4456340), (229, 3833620), (278, 3157910), (394, 2228170), (458, 1916810), (556, 1578955), (695, 1263164), (788, 1114085), (916, 958405), (973, 902260), (985, 891268), (1145, 766724), (1379, 636620), (1390, 631582), (1603, 547660), (1946, 451130), (1970, 445634), (2290, 383362), (2758, 318310), (2780, 315791), (3206, 273830), (3892, 225565), (3940, 222817), (4580, 191681), (4865, 180452), (5516, 159155), (6412, 136915), (6895, 127324), (8015, 109532), (9730, 90226), (13790, 63662), (16030, 54766), (19460, 45113), (27383, 32060), (27580, 31831)]