81496980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{26633}}^1$

素因数の和:26665

約数の個数: 72

約数和(自身を含む): 261758952

約数和(自身を除く): 180261972

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, 26633, 53266, 79899, 106532, 133165, 159798, 239697, 266330, 319596, 399495, 452761, 479394, 532660, 798990, 905522, 958788, 1198485, 1358283, 1597980, 1811044, 2263805, 2396970, 2716566, 4074849, 4527610, 4793940, 5433132, 6791415, 8149698, 9055220, 13582830, 16299396, 20374245, 27165660, 40748490, 81496980]

約数ペア:

[(1, 81496980), (2, 40748490), (3, 27165660), (4, 20374245), (5, 16299396), (6, 13582830), (9, 9055220), (10, 8149698), (12, 6791415), (15, 5433132), (17, 4793940), (18, 4527610), (20, 4074849), (30, 2716566), (34, 2396970), (36, 2263805), (45, 1811044), (51, 1597980), (60, 1358283), (68, 1198485), (85, 958788), (90, 905522), (102, 798990), (153, 532660), (170, 479394), (180, 452761), (204, 399495), (255, 319596), (306, 266330), (340, 239697), (510, 159798), (612, 133165), (765, 106532), (1020, 79899), (1530, 53266), (3060, 26633)]