1861380

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{383}}^1$

素因数の和:407

約数の個数: 72

約数和(自身を含む): 5870592

約数和(自身を除く): 4009212

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 243, 270, 324, 383, 405, 486, 540, 766, 810, 972, 1149, 1215, 1532, 1620, 1915, 2298, 2430, 3447, 3830, 4596, 4860, 5745, 6894, 7660, 10341, 11490, 13788, 17235, 20682, 22980, 31023, 34470, 41364, 51705, 62046, 68940, 93069, 103410, 124092, 155115, 186138, 206820, 310230, 372276, 465345, 620460, 930690, 1861380]

約数ペア:

[(1, 1861380), (2, 930690), (3, 620460), (4, 465345), (5, 372276), (6, 310230), (9, 206820), (10, 186138), (12, 155115), (15, 124092), (18, 103410), (20, 93069), (27, 68940), (30, 62046), (36, 51705), (45, 41364), (54, 34470), (60, 31023), (81, 22980), (90, 20682), (108, 17235), (135, 13788), (162, 11490), (180, 10341), (243, 7660), (270, 6894), (324, 5745), (383, 4860), (405, 4596), (486, 3830), (540, 3447), (766, 2430), (810, 2298), (972, 1915), (1149, 1620), (1215, 1532)]