641420012

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{307}}^1\times {\mathrm{743}}^1$

素因数の和:1110

約数の個数: 48

約数和(自身を含む): 1219088640

約数和(自身を除く): 577668628

約数列:

[1, 2, 4, 19, 37, 38, 74, 76, 148, 307, 614, 703, 743, 1228, 1406, 1486, 2812, 2972, 5833, 11359, 11666, 14117, 22718, 23332, 27491, 28234, 45436, 54982, 56468, 109964, 215821, 228101, 431642, 456202, 522329, 863284, 912404, 1044658, 2089316, 4333919, 8439737, 8667838, 16879474, 17335676, 33758948, 160355003, 320710006, 641420012]

約数ペア:

[(1, 641420012), (2, 320710006), (4, 160355003), (19, 33758948), (37, 17335676), (38, 16879474), (74, 8667838), (76, 8439737), (148, 4333919), (307, 2089316), (614, 1044658), (703, 912404), (743, 863284), (1228, 522329), (1406, 456202), (1486, 431642), (2812, 228101), (2972, 215821), (5833, 109964), (11359, 56468), (11666, 54982), (14117, 45436), (22718, 28234), (23332, 27491)]