1644901587

素因数分解:

$3^4\times 7^1\times {\mathrm{53}}^1\times {\mathrm{127}}^1\times {\mathrm{431}}^1$

素因数の和:630

約数の個数: 80

約数和(自身を含む): 2890432512

約数和(自身を除く): 1245530925

約数列:

[1, 3, 7, 9, 21, 27, 53, 63, 81, 127, 159, 189, 371, 381, 431, 477, 567, 889, 1113, 1143, 1293, 1431, 2667, 3017, 3339, 3429, 3879, 4293, 6731, 8001, 9051, 10017, 10287, 11637, 20193, 22843, 24003, 27153, 30051, 34911, 47117, 54737, 60579, 68529, 72009, 81459, 141351, 159901, 164211, 181737, 205587, 244377, 383159, 424053, 479703, 492633, 545211, 616761, 1149477, 1272159, 1439109, 1477899, 1850283, 2901061, 3448431, 3816477, 4317327, 4433697, 8703183, 10345293, 12951981, 20307427, 26109549, 31035879, 60922281, 78328647, 182766843, 234985941, 548300529, 1644901587]

約数ペア:

[(1, 1644901587), (3, 548300529), (7, 234985941), (9, 182766843), (21, 78328647), (27, 60922281), (53, 31035879), (63, 26109549), (81, 20307427), (127, 12951981), (159, 10345293), (189, 8703183), (371, 4433697), (381, 4317327), (431, 3816477), (477, 3448431), (567, 2901061), (889, 1850283), (1113, 1477899), (1143, 1439109), (1293, 1272159), (1431, 1149477), (2667, 616761), (3017, 545211), (3339, 492633), (3429, 479703), (3879, 424053), (4293, 383159), (6731, 244377), (8001, 205587), (9051, 181737), (10017, 164211), (10287, 159901), (11637, 141351), (20193, 81459), (22843, 72009), (24003, 68529), (27153, 60579), (30051, 54737), (34911, 47117)]