627804580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{281}}^1\times {\mathrm{661}}^1$

素因数の和:977

約数の個数: 72

約数和(自身を含む): 1434853224

約数和(自身を除く): 807048644

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 281, 338, 562, 661, 676, 845, 1124, 1322, 1405, 1690, 2644, 2810, 3305, 3380, 3653, 5620, 6610, 7306, 8593, 13220, 14612, 17186, 18265, 34372, 36530, 42965, 47489, 73060, 85930, 94978, 111709, 171860, 185741, 189956, 223418, 237445, 371482, 446836, 474890, 558545, 742964, 928705, 949780, 1117090, 1857410, 2234180, 2414633, 3714820, 4829266, 9658532, 12073165, 24146330, 31390229, 48292660, 62780458, 125560916, 156951145, 313902290, 627804580]

約数ペア:

[(1, 627804580), (2, 313902290), (4, 156951145), (5, 125560916), (10, 62780458), (13, 48292660), (20, 31390229), (26, 24146330), (52, 12073165), (65, 9658532), (130, 4829266), (169, 3714820), (260, 2414633), (281, 2234180), (338, 1857410), (562, 1117090), (661, 949780), (676, 928705), (845, 742964), (1124, 558545), (1322, 474890), (1405, 446836), (1690, 371482), (2644, 237445), (2810, 223418), (3305, 189956), (3380, 185741), (3653, 171860), (5620, 111709), (6610, 94978), (7306, 85930), (8593, 73060), (13220, 47489), (14612, 42965), (17186, 36530), (18265, 34372)]