19120425

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{149}}^1$

素因数の和:250

約数の個数: 48

約数和(自身を含む): 33480000

約数和(自身を除く): 14359575

約数列:

[1, 3, 5, 15, 25, 29, 59, 75, 87, 145, 149, 177, 295, 435, 447, 725, 745, 885, 1475, 1711, 2175, 2235, 3725, 4321, 4425, 5133, 8555, 8791, 11175, 12963, 21605, 25665, 26373, 42775, 43955, 64815, 108025, 128325, 131865, 219775, 254939, 324075, 659325, 764817, 1274695, 3824085, 6373475, 19120425]

約数ペア:

[(1, 19120425), (3, 6373475), (5, 3824085), (15, 1274695), (25, 764817), (29, 659325), (59, 324075), (75, 254939), (87, 219775), (145, 131865), (149, 128325), (177, 108025), (295, 64815), (435, 43955), (447, 42775), (725, 26373), (745, 25665), (885, 21605), (1475, 12963), (1711, 11175), (2175, 8791), (2235, 8555), (3725, 5133), (4321, 4425)]