211712800

素因数分解:

$2^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{20357}}^1$

素因数の和:20390

約数の個数: 72

約数和(自身を含む): 556628436

約数和(自身を除く): 344915636

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 65, 80, 100, 104, 130, 160, 200, 208, 260, 325, 400, 416, 520, 650, 800, 1040, 1300, 2080, 2600, 5200, 10400, 20357, 40714, 81428, 101785, 162856, 203570, 264641, 325712, 407140, 508925, 529282, 651424, 814280, 1017850, 1058564, 1323205, 1628560, 2035700, 2117128, 2646410, 3257120, 4071400, 4234256, 5292820, 6616025, 8142800, 8468512, 10585640, 13232050, 16285600, 21171280, 26464100, 42342560, 52928200, 105856400, 211712800]

約数ペア:

[(1, 211712800), (2, 105856400), (4, 52928200), (5, 42342560), (8, 26464100), (10, 21171280), (13, 16285600), (16, 13232050), (20, 10585640), (25, 8468512), (26, 8142800), (32, 6616025), (40, 5292820), (50, 4234256), (52, 4071400), (65, 3257120), (80, 2646410), (100, 2117128), (104, 2035700), (130, 1628560), (160, 1323205), (200, 1058564), (208, 1017850), (260, 814280), (325, 651424), (400, 529282), (416, 508925), (520, 407140), (650, 325712), (800, 264641), (1040, 203570), (1300, 162856), (2080, 101785), (2600, 81428), (5200, 40714), (10400, 20357)]