209173880

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{1453}}^1$

素因数の和:1584

約数の個数: 64

約数和(自身を含む): 486799200

約数和(自身を除く): 277625320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 61, 118, 122, 236, 244, 295, 305, 472, 488, 590, 610, 1180, 1220, 1453, 2360, 2440, 2906, 3599, 5812, 7198, 7265, 11624, 14396, 14530, 17995, 28792, 29060, 35990, 58120, 71980, 85727, 88633, 143960, 171454, 177266, 342908, 354532, 428635, 443165, 685816, 709064, 857270, 886330, 1714540, 1772660, 3429080, 3545320, 5229347, 10458694, 20917388, 26146735, 41834776, 52293470, 104586940, 209173880]

約数ペア:

[(1, 209173880), (2, 104586940), (4, 52293470), (5, 41834776), (8, 26146735), (10, 20917388), (20, 10458694), (40, 5229347), (59, 3545320), (61, 3429080), (118, 1772660), (122, 1714540), (236, 886330), (244, 857270), (295, 709064), (305, 685816), (472, 443165), (488, 428635), (590, 354532), (610, 342908), (1180, 177266), (1220, 171454), (1453, 143960), (2360, 88633), (2440, 85727), (2906, 71980), (3599, 58120), (5812, 35990), (7198, 29060), (7265, 28792), (11624, 17995), (14396, 14530)]