156638900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{907}}^1$

素因数の和:1089

約数の個数: 72

約数和(自身を含む): 373580256

約数和(自身を除く): 216941356

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 157, 220, 275, 314, 550, 628, 785, 907, 1100, 1570, 1727, 1814, 3140, 3454, 3628, 3925, 4535, 6908, 7850, 8635, 9070, 9977, 15700, 17270, 18140, 19954, 22675, 34540, 39908, 43175, 45350, 49885, 86350, 90700, 99770, 142399, 172700, 199540, 249425, 284798, 498850, 569596, 711995, 997700, 1423990, 1566389, 2847980, 3132778, 3559975, 6265556, 7119950, 7831945, 14239900, 15663890, 31327780, 39159725, 78319450, 156638900]

約数ペア:

[(1, 156638900), (2, 78319450), (4, 39159725), (5, 31327780), (10, 15663890), (11, 14239900), (20, 7831945), (22, 7119950), (25, 6265556), (44, 3559975), (50, 3132778), (55, 2847980), (100, 1566389), (110, 1423990), (157, 997700), (220, 711995), (275, 569596), (314, 498850), (550, 284798), (628, 249425), (785, 199540), (907, 172700), (1100, 142399), (1570, 99770), (1727, 90700), (1814, 86350), (3140, 49885), (3454, 45350), (3628, 43175), (3925, 39908), (4535, 34540), (6908, 22675), (7850, 19954), (8635, 18140), (9070, 17270), (9977, 15700)]