1387488520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{3153383}}^1$

素因数の和:3153405

約数の個数: 32

約数和(自身を含む): 3405654720

約数和(自身を除く): 2018166200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 3153383, 6306766, 12613532, 15766915, 25227064, 31533830, 34687213, 63067660, 69374426, 126135320, 138748852, 173436065, 277497704, 346872130, 693744260, 1387488520]

約数ペア:

[(1, 1387488520), (2, 693744260), (4, 346872130), (5, 277497704), (8, 173436065), (10, 138748852), (11, 126135320), (20, 69374426), (22, 63067660), (40, 34687213), (44, 31533830), (55, 25227064), (88, 15766915), (110, 12613532), (220, 6306766), (440, 3153383)]