39970980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{31723}}^1$

素因数の和:31745

約数の個数: 72

約数和(自身を含む): 138570432

約数和(自身を除く): 98599452

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 31723, 63446, 95169, 126892, 158615, 190338, 222061, 285507, 317230, 380676, 444122, 475845, 571014, 634460, 666183, 888244, 951690, 1110305, 1142028, 1332366, 1427535, 1903380, 1998549, 2220610, 2664732, 2855070, 3330915, 3997098, 4441220, 5710140, 6661830, 7994196, 9992745, 13323660, 19985490, 39970980]

約数ペア:

[(1, 39970980), (2, 19985490), (3, 13323660), (4, 9992745), (5, 7994196), (6, 6661830), (7, 5710140), (9, 4441220), (10, 3997098), (12, 3330915), (14, 2855070), (15, 2664732), (18, 2220610), (20, 1998549), (21, 1903380), (28, 1427535), (30, 1332366), (35, 1142028), (36, 1110305), (42, 951690), (45, 888244), (60, 666183), (63, 634460), (70, 571014), (84, 475845), (90, 444122), (105, 380676), (126, 317230), (140, 285507), (180, 222061), (210, 190338), (252, 158615), (315, 126892), (420, 95169), (630, 63446), (1260, 31723)]