917885540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{320939}}^1$

素因数の和:320972

約数の個数: 48

約数和(自身を含む): 2264552640

約数和(自身を除く): 1346667100

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 320939, 641878, 1283756, 1604695, 3209390, 3530329, 4172207, 6418780, 7060658, 8344414, 14121316, 16688828, 17651645, 20861035, 35303290, 41722070, 45894277, 70606580, 83444140, 91788554, 183577108, 229471385, 458942770, 917885540]

約数ペア:

[(1, 917885540), (2, 458942770), (4, 229471385), (5, 183577108), (10, 91788554), (11, 83444140), (13, 70606580), (20, 45894277), (22, 41722070), (26, 35303290), (44, 20861035), (52, 17651645), (55, 16688828), (65, 14121316), (110, 8344414), (130, 7060658), (143, 6418780), (220, 4172207), (260, 3530329), (286, 3209390), (572, 1604695), (715, 1283756), (1430, 641878), (2860, 320939)]