20120145

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{227}}^1\times {\mathrm{311}}^1$

素因数の和:565

約数の個数: 32

約数和(自身を含む): 34145280

約数和(自身を除く): 14025135

約数列:

[1, 3, 5, 15, 19, 57, 95, 227, 285, 311, 681, 933, 1135, 1555, 3405, 4313, 4665, 5909, 12939, 17727, 21565, 29545, 64695, 70597, 88635, 211791, 352985, 1058955, 1341343, 4024029, 6706715, 20120145]

約数ペア:

[(1, 20120145), (3, 6706715), (5, 4024029), (15, 1341343), (19, 1058955), (57, 352985), (95, 211791), (227, 88635), (285, 70597), (311, 64695), (681, 29545), (933, 21565), (1135, 17727), (1555, 12939), (3405, 5909), (4313, 4665)]