18917962570

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{241}}^1\times {\mathrm{11393}}^1$

素因数の和:11707

約数の個数: 64

約数和(自身を含む): 37521991584

約数和(自身を除く): 18604029014

約数列:

[1, 2, 5, 10, 13, 26, 53, 65, 106, 130, 241, 265, 482, 530, 689, 1205, 1378, 2410, 3133, 3445, 6266, 6890, 11393, 12773, 15665, 22786, 25546, 31330, 56965, 63865, 113930, 127730, 148109, 166049, 296218, 332098, 603829, 740545, 830245, 1207658, 1481090, 1660490, 2745713, 3019145, 5491426, 6038290, 7849777, 13728565, 15699554, 27457130, 35694269, 39248885, 71388538, 78497770, 145522789, 178471345, 291045578, 356942690, 727613945, 1455227890, 1891796257, 3783592514, 9458981285, 18917962570]

約数ペア:

[(1, 18917962570), (2, 9458981285), (5, 3783592514), (10, 1891796257), (13, 1455227890), (26, 727613945), (53, 356942690), (65, 291045578), (106, 178471345), (130, 145522789), (241, 78497770), (265, 71388538), (482, 39248885), (530, 35694269), (689, 27457130), (1205, 15699554), (1378, 13728565), (2410, 7849777), (3133, 6038290), (3445, 5491426), (6266, 3019145), (6890, 2745713), (11393, 1660490), (12773, 1481090), (15665, 1207658), (22786, 830245), (25546, 740545), (31330, 603829), (56965, 332098), (63865, 296218), (113930, 166049), (127730, 148109)]