388293880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{39301}}^1$

素因数の和:39344

約数の個数: 64

約数和(自身を含む): 990410400

約数和(自身を除く): 602116520

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 380, 494, 520, 760, 988, 1235, 1976, 2470, 4940, 9880, 39301, 78602, 157204, 196505, 314408, 393010, 510913, 746719, 786020, 1021826, 1493438, 1572040, 2043652, 2554565, 2986876, 3733595, 4087304, 5109130, 5973752, 7467190, 9707347, 10218260, 14934380, 19414694, 20436520, 29868760, 38829388, 48536735, 77658776, 97073470, 194146940, 388293880]

約数ペア:

[(1, 388293880), (2, 194146940), (4, 97073470), (5, 77658776), (8, 48536735), (10, 38829388), (13, 29868760), (19, 20436520), (20, 19414694), (26, 14934380), (38, 10218260), (40, 9707347), (52, 7467190), (65, 5973752), (76, 5109130), (95, 4087304), (104, 3733595), (130, 2986876), (152, 2554565), (190, 2043652), (247, 1572040), (260, 1493438), (380, 1021826), (494, 786020), (520, 746719), (760, 510913), (988, 393010), (1235, 314408), (1976, 196505), (2470, 157204), (4940, 78602), (9880, 39301)]