217809904

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{109}}^1\times {\mathrm{739}}^1$

素因数の和:882

約数の個数: 60

約数和(自身を含む): 461782200

約数和(自身を除く): 243972296

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 109, 169, 208, 218, 338, 436, 676, 739, 872, 1352, 1417, 1478, 1744, 2704, 2834, 2956, 5668, 5912, 9607, 11336, 11824, 18421, 19214, 22672, 36842, 38428, 73684, 76856, 80551, 124891, 147368, 153712, 161102, 249782, 294736, 322204, 499564, 644408, 999128, 1047163, 1288816, 1998256, 2094326, 4188652, 8377304, 13613119, 16754608, 27226238, 54452476, 108904952, 217809904]

約数ペア:

[(1, 217809904), (2, 108904952), (4, 54452476), (8, 27226238), (13, 16754608), (16, 13613119), (26, 8377304), (52, 4188652), (104, 2094326), (109, 1998256), (169, 1288816), (208, 1047163), (218, 999128), (338, 644408), (436, 499564), (676, 322204), (739, 294736), (872, 249782), (1352, 161102), (1417, 153712), (1478, 147368), (1744, 124891), (2704, 80551), (2834, 76856), (2956, 73684), (5668, 38428), (5912, 36842), (9607, 22672), (11336, 19214), (11824, 18421)]