161863020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{81749}}^1$

素因数の和:81775

約数の個数: 72

約数和(自身を含む): 535626000

約数和(自身を除く): 373762980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 81749, 163498, 245247, 326996, 408745, 490494, 735741, 817490, 899239, 980988, 1226235, 1471482, 1634980, 1798478, 2452470, 2697717, 2942964, 3596956, 3678705, 4496195, 4904940, 5395434, 7357410, 8093151, 8992390, 10790868, 13488585, 14714820, 16186302, 17984780, 26977170, 32372604, 40465755, 53954340, 80931510, 161863020]

約数ペア:

[(1, 161863020), (2, 80931510), (3, 53954340), (4, 40465755), (5, 32372604), (6, 26977170), (9, 17984780), (10, 16186302), (11, 14714820), (12, 13488585), (15, 10790868), (18, 8992390), (20, 8093151), (22, 7357410), (30, 5395434), (33, 4904940), (36, 4496195), (44, 3678705), (45, 3596956), (55, 2942964), (60, 2697717), (66, 2452470), (90, 1798478), (99, 1634980), (110, 1471482), (132, 1226235), (165, 980988), (180, 899239), (198, 817490), (220, 735741), (330, 490494), (396, 408745), (495, 326996), (660, 245247), (990, 163498), (1980, 81749)]