81215316

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{1907}}^1$

素因数の和:1950

約数の個数: 108

約数和(自身を含む): 254191392

約数和(自身を除く): 172976076

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 28, 36, 39, 42, 52, 63, 78, 84, 91, 117, 126, 156, 169, 182, 234, 252, 273, 338, 364, 468, 507, 546, 676, 819, 1014, 1092, 1183, 1521, 1638, 1907, 2028, 2366, 3042, 3276, 3549, 3814, 4732, 5721, 6084, 7098, 7628, 10647, 11442, 13349, 14196, 17163, 21294, 22884, 24791, 26698, 34326, 40047, 42588, 49582, 53396, 68652, 74373, 80094, 99164, 120141, 148746, 160188, 173537, 223119, 240282, 297492, 322283, 347074, 446238, 480564, 520611, 644566, 694148, 892476, 966849, 1041222, 1289132, 1561833, 1933698, 2082444, 2255981, 2900547, 3123666, 3867396, 4511962, 5801094, 6247332, 6767943, 9023924, 11602188, 13535886, 20303829, 27071772, 40607658, 81215316]

約数ペア:

[(1, 81215316), (2, 40607658), (3, 27071772), (4, 20303829), (6, 13535886), (7, 11602188), (9, 9023924), (12, 6767943), (13, 6247332), (14, 5801094), (18, 4511962), (21, 3867396), (26, 3123666), (28, 2900547), (36, 2255981), (39, 2082444), (42, 1933698), (52, 1561833), (63, 1289132), (78, 1041222), (84, 966849), (91, 892476), (117, 694148), (126, 644566), (156, 520611), (169, 480564), (182, 446238), (234, 347074), (252, 322283), (273, 297492), (338, 240282), (364, 223119), (468, 173537), (507, 160188), (546, 148746), (676, 120141), (819, 99164), (1014, 80094), (1092, 74373), (1183, 68652), (1521, 53396), (1638, 49582), (1907, 42588), (2028, 40047), (2366, 34326), (3042, 26698), (3276, 24791), (3549, 22884), (3814, 21294), (4732, 17163), (5721, 14196), (6084, 13349), (7098, 11442), (7628, 10647)]