72825140

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{163}}^1\times {\mathrm{251}}^1$

素因数の和:512

約数の個数: 48

約数和(自身を含む): 156219840

約数和(自身を除く): 83394700

約数列:

[1, 2, 4, 5, 10, 20, 89, 163, 178, 251, 326, 356, 445, 502, 652, 815, 890, 1004, 1255, 1630, 1780, 2510, 3260, 5020, 14507, 22339, 29014, 40913, 44678, 58028, 72535, 81826, 89356, 111695, 145070, 163652, 204565, 223390, 290140, 409130, 446780, 818260, 3641257, 7282514, 14565028, 18206285, 36412570, 72825140]

約数ペア:

[(1, 72825140), (2, 36412570), (4, 18206285), (5, 14565028), (10, 7282514), (20, 3641257), (89, 818260), (163, 446780), (178, 409130), (251, 290140), (326, 223390), (356, 204565), (445, 163652), (502, 145070), (652, 111695), (815, 89356), (890, 81826), (1004, 72535), (1255, 58028), (1630, 44678), (1780, 40913), (2510, 29014), (3260, 22339), (5020, 14507)]