209869890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{1571}}^1$

素因数の和:1715

約数の個数: 64

約数和(自身を含む): 519288192

約数和(自身を除く): 309418302

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 61, 73, 122, 146, 183, 219, 305, 365, 366, 438, 610, 730, 915, 1095, 1571, 1830, 2190, 3142, 4453, 4713, 7855, 8906, 9426, 13359, 15710, 22265, 23565, 26718, 44530, 47130, 66795, 95831, 114683, 133590, 191662, 229366, 287493, 344049, 479155, 573415, 574986, 688098, 958310, 1146830, 1437465, 1720245, 2874930, 3440490, 6995663, 13991326, 20986989, 34978315, 41973978, 69956630, 104934945, 209869890]

約数ペア:

[(1, 209869890), (2, 104934945), (3, 69956630), (5, 41973978), (6, 34978315), (10, 20986989), (15, 13991326), (30, 6995663), (61, 3440490), (73, 2874930), (122, 1720245), (146, 1437465), (183, 1146830), (219, 958310), (305, 688098), (365, 574986), (366, 573415), (438, 479155), (610, 344049), (730, 287493), (915, 229366), (1095, 191662), (1571, 133590), (1830, 114683), (2190, 95831), (3142, 66795), (4453, 47130), (4713, 44530), (7855, 26718), (8906, 23565), (9426, 22265), (13359, 15710)]