16810020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{1987}}^1$

素因数の和:2049

約数の個数: 72

約数和(自身を含む): 52101504

約数和(自身を除く): 35291484

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 47, 60, 90, 94, 141, 180, 188, 235, 282, 423, 470, 564, 705, 846, 940, 1410, 1692, 1987, 2115, 2820, 3974, 4230, 5961, 7948, 8460, 9935, 11922, 17883, 19870, 23844, 29805, 35766, 39740, 59610, 71532, 89415, 93389, 119220, 178830, 186778, 280167, 357660, 373556, 466945, 560334, 840501, 933890, 1120668, 1400835, 1681002, 1867780, 2801670, 3362004, 4202505, 5603340, 8405010, 16810020]

約数ペア:

[(1, 16810020), (2, 8405010), (3, 5603340), (4, 4202505), (5, 3362004), (6, 2801670), (9, 1867780), (10, 1681002), (12, 1400835), (15, 1120668), (18, 933890), (20, 840501), (30, 560334), (36, 466945), (45, 373556), (47, 357660), (60, 280167), (90, 186778), (94, 178830), (141, 119220), (180, 93389), (188, 89415), (235, 71532), (282, 59610), (423, 39740), (470, 35766), (564, 29805), (705, 23844), (846, 19870), (940, 17883), (1410, 11922), (1692, 9935), (1987, 8460), (2115, 7948), (2820, 5961), (3974, 4230)]