21750440

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{28619}}^1$

素因数の和:28649

約数の個数: 32

約数和(自身を含む): 51516000

約数和(自身を除く): 29765560

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 28619, 57238, 114476, 143095, 228952, 286190, 543761, 572380, 1087522, 1144760, 2175044, 2718805, 4350088, 5437610, 10875220, 21750440]

約数ペア:

[(1, 21750440), (2, 10875220), (4, 5437610), (5, 4350088), (8, 2718805), (10, 2175044), (19, 1144760), (20, 1087522), (38, 572380), (40, 543761), (76, 286190), (95, 228952), (152, 143095), (190, 114476), (380, 57238), (760, 28619)]