221831600

素因数分解:

$2^4\times 5^2\times {\mathrm{661}}^1\times {\mathrm{839}}^1$

素因数の和:1518

約数の個数: 60

約数和(自身を含む): 534392880

約数和(自身を除く): 312561280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 661, 839, 1322, 1678, 2644, 3305, 3356, 4195, 5288, 6610, 6712, 8390, 10576, 13220, 13424, 16525, 16780, 20975, 26440, 33050, 33560, 41950, 52880, 66100, 67120, 83900, 132200, 167800, 264400, 335600, 554579, 1109158, 2218316, 2772895, 4436632, 5545790, 8873264, 11091580, 13864475, 22183160, 27728950, 44366320, 55457900, 110915800, 221831600]

約数ペア:

[(1, 221831600), (2, 110915800), (4, 55457900), (5, 44366320), (8, 27728950), (10, 22183160), (16, 13864475), (20, 11091580), (25, 8873264), (40, 5545790), (50, 4436632), (80, 2772895), (100, 2218316), (200, 1109158), (400, 554579), (661, 335600), (839, 264400), (1322, 167800), (1678, 132200), (2644, 83900), (3305, 67120), (3356, 66100), (4195, 52880), (5288, 41950), (6610, 33560), (6712, 33050), (8390, 26440), (10576, 20975), (13220, 16780), (13424, 16525)]