1998865680

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{1189801}}^1$

素因数の和:1189824

約数の個数: 80

約数和(自身を含む): 7081701504

約数和(自身を除く): 5082835824

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 1189801, 2379602, 3569403, 4759204, 5949005, 7138806, 8328607, 9518408, 11898010, 14277612, 16657214, 17847015, 19036816, 23796020, 24985821, 28555224, 33314428, 35694030, 41643035, 47592040, 49971642, 57110448, 66628856, 71388060, 83286070, 95184080, 99943284, 124929105, 133257712, 142776120, 166572140, 199886568, 249858210, 285552240, 333144280, 399773136, 499716420, 666288560, 999432840, 1998865680]

約数ペア:

[(1, 1998865680), (2, 999432840), (3, 666288560), (4, 499716420), (5, 399773136), (6, 333144280), (7, 285552240), (8, 249858210), (10, 199886568), (12, 166572140), (14, 142776120), (15, 133257712), (16, 124929105), (20, 99943284), (21, 95184080), (24, 83286070), (28, 71388060), (30, 66628856), (35, 57110448), (40, 49971642), (42, 47592040), (48, 41643035), (56, 35694030), (60, 33314428), (70, 28555224), (80, 24985821), (84, 23796020), (105, 19036816), (112, 17847015), (120, 16657214), (140, 14277612), (168, 11898010), (210, 9518408), (240, 8328607), (280, 7138806), (336, 5949005), (420, 4759204), (560, 3569403), (840, 2379602), (1680, 1189801)]