665120270

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{151}}^1\times {\mathrm{239}}^1$

素因数の和:513

約数の個数: 64

約数和(自身を含む): 1287014400

約数和(自身を除く): 621894130

約数列:

[1, 2, 5, 10, 19, 38, 95, 97, 151, 190, 194, 239, 302, 478, 485, 755, 970, 1195, 1510, 1843, 2390, 2869, 3686, 4541, 5738, 9082, 9215, 14345, 14647, 18430, 22705, 23183, 28690, 29294, 36089, 45410, 46366, 72178, 73235, 115915, 146470, 180445, 231830, 278293, 360890, 440477, 556586, 685691, 880954, 1371382, 1391465, 2202385, 2782930, 3428455, 3500633, 4404770, 6856910, 7001266, 17503165, 35006330, 66512027, 133024054, 332560135, 665120270]

約数ペア:

[(1, 665120270), (2, 332560135), (5, 133024054), (10, 66512027), (19, 35006330), (38, 17503165), (95, 7001266), (97, 6856910), (151, 4404770), (190, 3500633), (194, 3428455), (239, 2782930), (302, 2202385), (478, 1391465), (485, 1371382), (755, 880954), (970, 685691), (1195, 556586), (1510, 440477), (1843, 360890), (2390, 278293), (2869, 231830), (3686, 180445), (4541, 146470), (5738, 115915), (9082, 73235), (9215, 72178), (14345, 46366), (14647, 45410), (18430, 36089), (22705, 29294), (23183, 28690)]