72630920

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{227}}^1\times {\mathrm{421}}^1$

素因数の和:678

約数の個数: 64

約数和(自身を含む): 173188800

約数和(自身を除く): 100557880

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 227, 380, 421, 454, 760, 842, 908, 1135, 1684, 1816, 2105, 2270, 3368, 4210, 4313, 4540, 7999, 8420, 8626, 9080, 15998, 16840, 17252, 21565, 31996, 34504, 39995, 43130, 63992, 79990, 86260, 95567, 159980, 172520, 191134, 319960, 382268, 477835, 764536, 955670, 1815773, 1911340, 3631546, 3822680, 7263092, 9078865, 14526184, 18157730, 36315460, 72630920]

約数ペア:

[(1, 72630920), (2, 36315460), (4, 18157730), (5, 14526184), (8, 9078865), (10, 7263092), (19, 3822680), (20, 3631546), (38, 1911340), (40, 1815773), (76, 955670), (95, 764536), (152, 477835), (190, 382268), (227, 319960), (380, 191134), (421, 172520), (454, 159980), (760, 95567), (842, 86260), (908, 79990), (1135, 63992), (1684, 43130), (1816, 39995), (2105, 34504), (2270, 31996), (3368, 21565), (4210, 17252), (4313, 16840), (4540, 15998), (7999, 9080), (8420, 8626)]