18972700

素因数分解:

$2^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{113}}^1$

素因数の和:223

約数の個数: 72

約数和(自身を含む): 43934688

約数和(自身を除く): 24961988

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 46, 50, 73, 92, 100, 113, 115, 146, 226, 230, 292, 365, 452, 460, 565, 575, 730, 1130, 1150, 1460, 1679, 1825, 2260, 2300, 2599, 2825, 3358, 3650, 5198, 5650, 6716, 7300, 8249, 8395, 10396, 11300, 12995, 16498, 16790, 25990, 32996, 33580, 41245, 41975, 51980, 64975, 82490, 83950, 129950, 164980, 167900, 189727, 206225, 259900, 379454, 412450, 758908, 824900, 948635, 1897270, 3794540, 4743175, 9486350, 18972700]

約数ペア:

[(1, 18972700), (2, 9486350), (4, 4743175), (5, 3794540), (10, 1897270), (20, 948635), (23, 824900), (25, 758908), (46, 412450), (50, 379454), (73, 259900), (92, 206225), (100, 189727), (113, 167900), (115, 164980), (146, 129950), (226, 83950), (230, 82490), (292, 64975), (365, 51980), (452, 41975), (460, 41245), (565, 33580), (575, 32996), (730, 25990), (1130, 16790), (1150, 16498), (1460, 12995), (1679, 11300), (1825, 10396), (2260, 8395), (2300, 8249), (2599, 7300), (2825, 6716), (3358, 5650), (3650, 5198)]