20710950

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1$

素因数の和:103

約数の個数: 144

約数和(自身を含む): 59906880

約数和(自身を除く): 39195930

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 19, 25, 26, 30, 38, 39, 43, 50, 57, 65, 75, 78, 86, 95, 114, 129, 130, 150, 169, 190, 195, 215, 247, 258, 285, 325, 338, 390, 430, 475, 494, 507, 559, 570, 645, 650, 741, 817, 845, 950, 975, 1014, 1075, 1118, 1235, 1290, 1425, 1482, 1634, 1677, 1690, 1950, 2150, 2451, 2470, 2535, 2795, 2850, 3211, 3225, 3354, 3705, 4085, 4225, 4902, 5070, 5590, 6175, 6422, 6450, 7267, 7410, 8170, 8385, 8450, 9633, 10621, 12255, 12350, 12675, 13975, 14534, 16055, 16770, 18525, 19266, 20425, 21242, 21801, 24510, 25350, 27950, 31863, 32110, 36335, 37050, 40850, 41925, 43602, 48165, 53105, 61275, 63726, 72670, 80275, 83850, 96330, 106210, 109005, 122550, 138073, 159315, 160550, 181675, 218010, 240825, 265525, 276146, 318630, 363350, 414219, 481650, 531050, 545025, 690365, 796575, 828438, 1090050, 1380730, 1593150, 2071095, 3451825, 4142190, 6903650, 10355475, 20710950]

約数ペア:

[(1, 20710950), (2, 10355475), (3, 6903650), (5, 4142190), (6, 3451825), (10, 2071095), (13, 1593150), (15, 1380730), (19, 1090050), (25, 828438), (26, 796575), (30, 690365), (38, 545025), (39, 531050), (43, 481650), (50, 414219), (57, 363350), (65, 318630), (75, 276146), (78, 265525), (86, 240825), (95, 218010), (114, 181675), (129, 160550), (130, 159315), (150, 138073), (169, 122550), (190, 109005), (195, 106210), (215, 96330), (247, 83850), (258, 80275), (285, 72670), (325, 63726), (338, 61275), (390, 53105), (430, 48165), (475, 43602), (494, 41925), (507, 40850), (559, 37050), (570, 36335), (645, 32110), (650, 31863), (741, 27950), (817, 25350), (845, 24510), (950, 21801), (975, 21242), (1014, 20425), (1075, 19266), (1118, 18525), (1235, 16770), (1290, 16055), (1425, 14534), (1482, 13975), (1634, 12675), (1677, 12350), (1690, 12255), (1950, 10621), (2150, 9633), (2451, 8450), (2470, 8385), (2535, 8170), (2795, 7410), (2850, 7267), (3211, 6450), (3225, 6422), (3354, 6175), (3705, 5590), (4085, 5070), (4225, 4902)]