19907202236

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{421}}^1\times {\mathrm{2609}}^1$

素因数の和:3254

約数の個数: 48

約数和(自身を含む): 36637634880

約数和(自身を除く): 16730432644

約数列:

[1, 2, 4, 23, 46, 92, 197, 394, 421, 788, 842, 1684, 2609, 4531, 5218, 9062, 9683, 10436, 18124, 19366, 38732, 60007, 82937, 120014, 165874, 240028, 331748, 513973, 1027946, 1098389, 1907551, 2055892, 2196778, 3815102, 4393556, 7630204, 11821379, 23642758, 25262947, 47285516, 50525894, 101051788, 216382633, 432765266, 865530532, 4976800559, 9953601118, 19907202236]

約数ペア:

[(1, 19907202236), (2, 9953601118), (4, 4976800559), (23, 865530532), (46, 432765266), (92, 216382633), (197, 101051788), (394, 50525894), (421, 47285516), (788, 25262947), (842, 23642758), (1684, 11821379), (2609, 7630204), (4531, 4393556), (5218, 3815102), (9062, 2196778), (9683, 2055892), (10436, 1907551), (18124, 1098389), (19366, 1027946), (38732, 513973), (60007, 331748), (82937, 240028), (120014, 165874)]