19810702908

素因数分解:

$2^2\times 3^2\times {\mathrm{151}}^1\times {\mathrm{233}}^1\times {\mathrm{15641}}^1$

素因数の和:16035

約数の個数: 72

約数和(自身を含む): 50628273696

約数和(自身を除く): 30817570788

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 151, 233, 302, 453, 466, 604, 699, 906, 932, 1359, 1398, 1812, 2097, 2718, 2796, 4194, 5436, 8388, 15641, 31282, 35183, 46923, 62564, 70366, 93846, 105549, 140732, 140769, 187692, 211098, 281538, 316647, 422196, 563076, 633294, 1266588, 2361791, 3644353, 4723582, 7085373, 7288706, 9447164, 10933059, 14170746, 14577412, 21256119, 21866118, 28341492, 32799177, 42512238, 43732236, 65598354, 85024476, 131196708, 550297303, 1100594606, 1650891909, 2201189212, 3301783818, 4952675727, 6603567636, 9905351454, 19810702908]

約数ペア:

[(1, 19810702908), (2, 9905351454), (3, 6603567636), (4, 4952675727), (6, 3301783818), (9, 2201189212), (12, 1650891909), (18, 1100594606), (36, 550297303), (151, 131196708), (233, 85024476), (302, 65598354), (453, 43732236), (466, 42512238), (604, 32799177), (699, 28341492), (906, 21866118), (932, 21256119), (1359, 14577412), (1398, 14170746), (1812, 10933059), (2097, 9447164), (2718, 7288706), (2796, 7085373), (4194, 4723582), (5436, 3644353), (8388, 2361791), (15641, 1266588), (31282, 633294), (35183, 563076), (46923, 422196), (62564, 316647), (70366, 281538), (93846, 211098), (105549, 187692), (140732, 140769)]