19901250430

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{654001}}^1$

素因数の和:654204

約数の個数: 32

約数和(自身を含む): 38141396640

約数和(自身を除く): 18240146210

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 179, 358, 895, 1790, 3043, 6086, 15215, 30430, 654001, 1308002, 3270005, 6540010, 11118017, 22236034, 55590085, 111180170, 117066179, 234132358, 585330895, 1170661790, 1990125043, 3980250086, 9950625215, 19901250430]

約数ペア:

[(1, 19901250430), (2, 9950625215), (5, 3980250086), (10, 1990125043), (17, 1170661790), (34, 585330895), (85, 234132358), (170, 117066179), (179, 111180170), (358, 55590085), (895, 22236034), (1790, 11118017), (3043, 6540010), (6086, 3270005), (15215, 1308002), (30430, 654001)]