81209150

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{433}}^1$

素因数の和:498

約数の個数: 72

約数和(自身を含む): 171780672

約数和(自身を除く): 90571522

約数列:

[1, 2, 5, 10, 11, 22, 25, 31, 50, 55, 62, 110, 121, 155, 242, 275, 310, 341, 433, 550, 605, 682, 775, 866, 1210, 1550, 1705, 2165, 3025, 3410, 3751, 4330, 4763, 6050, 7502, 8525, 9526, 10825, 13423, 17050, 18755, 21650, 23815, 26846, 37510, 47630, 52393, 67115, 93775, 104786, 119075, 134230, 147653, 187550, 238150, 261965, 295306, 335575, 523930, 671150, 738265, 1309825, 1476530, 1624183, 2619650, 3248366, 3691325, 7382650, 8120915, 16241830, 40604575, 81209150]

約数ペア:

[(1, 81209150), (2, 40604575), (5, 16241830), (10, 8120915), (11, 7382650), (22, 3691325), (25, 3248366), (31, 2619650), (50, 1624183), (55, 1476530), (62, 1309825), (110, 738265), (121, 671150), (155, 523930), (242, 335575), (275, 295306), (310, 261965), (341, 238150), (433, 187550), (550, 147653), (605, 134230), (682, 119075), (775, 104786), (866, 93775), (1210, 67115), (1550, 52393), (1705, 47630), (2165, 37510), (3025, 26846), (3410, 23815), (3751, 21650), (4330, 18755), (4763, 17050), (6050, 13423), (7502, 10825), (8525, 9526)]