78436980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{25633}}^1$

素因数の和:25665

約数の個数: 72

約数和(自身を含む): 251930952

約数和(自身を除く): 173493972

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 85, 90, 102, 153, 170, 180, 204, 255, 306, 340, 510, 612, 765, 1020, 1530, 3060, 25633, 51266, 76899, 102532, 128165, 153798, 230697, 256330, 307596, 384495, 435761, 461394, 512660, 768990, 871522, 922788, 1153485, 1307283, 1537980, 1743044, 2178805, 2306970, 2614566, 3921849, 4357610, 4613940, 5229132, 6536415, 7843698, 8715220, 13072830, 15687396, 19609245, 26145660, 39218490, 78436980]

約数ペア:

[(1, 78436980), (2, 39218490), (3, 26145660), (4, 19609245), (5, 15687396), (6, 13072830), (9, 8715220), (10, 7843698), (12, 6536415), (15, 5229132), (17, 4613940), (18, 4357610), (20, 3921849), (30, 2614566), (34, 2306970), (36, 2178805), (45, 1743044), (51, 1537980), (60, 1307283), (68, 1153485), (85, 922788), (90, 871522), (102, 768990), (153, 512660), (170, 461394), (180, 435761), (204, 384495), (255, 307596), (306, 256330), (340, 230697), (510, 153798), (612, 128165), (765, 102532), (1020, 76899), (1530, 51266), (3060, 25633)]