81822930

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{20507}}^1$

素因数の和:20543

約数の個数: 64

約数和(自身を含む): 236252160

約数和(自身を除く): 154429230

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 19, 21, 30, 35, 38, 42, 57, 70, 95, 105, 114, 133, 190, 210, 266, 285, 399, 570, 665, 798, 1330, 1995, 3990, 20507, 41014, 61521, 102535, 123042, 143549, 205070, 287098, 307605, 389633, 430647, 615210, 717745, 779266, 861294, 1168899, 1435490, 1948165, 2153235, 2337798, 2727431, 3896330, 4306470, 5454862, 5844495, 8182293, 11688990, 13637155, 16364586, 27274310, 40911465, 81822930]

約数ペア:

[(1, 81822930), (2, 40911465), (3, 27274310), (5, 16364586), (6, 13637155), (7, 11688990), (10, 8182293), (14, 5844495), (15, 5454862), (19, 4306470), (21, 3896330), (30, 2727431), (35, 2337798), (38, 2153235), (42, 1948165), (57, 1435490), (70, 1168899), (95, 861294), (105, 779266), (114, 717745), (133, 615210), (190, 430647), (210, 389633), (266, 307605), (285, 287098), (399, 205070), (570, 143549), (665, 123042), (798, 102535), (1330, 61521), (1995, 41014), (3990, 20507)]