156965420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{509}}^1\times {\mathrm{907}}^1$

素因数の和:1442

約数の個数: 48

約数和(自身を含む): 350088480

約数和(自身を除く): 193123060

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 509, 907, 1018, 1814, 2036, 2545, 3628, 4535, 5090, 8653, 9070, 10180, 15419, 17306, 18140, 30838, 34612, 43265, 61676, 77095, 86530, 154190, 173060, 308380, 461663, 923326, 1846652, 2308315, 4616630, 7848271, 9233260, 15696542, 31393084, 39241355, 78482710, 156965420]

約数ペア:

[(1, 156965420), (2, 78482710), (4, 39241355), (5, 31393084), (10, 15696542), (17, 9233260), (20, 7848271), (34, 4616630), (68, 2308315), (85, 1846652), (170, 923326), (340, 461663), (509, 308380), (907, 173060), (1018, 154190), (1814, 86530), (2036, 77095), (2545, 61676), (3628, 43265), (4535, 34612), (5090, 30838), (8653, 18140), (9070, 17306), (10180, 15419)]