20318128

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{74699}}^1$

素因数の和:74724

約数の個数: 20

約数和(自身を含む): 41682600

約数和(自身を除く): 21364472

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 74699, 149398, 298796, 597592, 1195184, 1269883, 2539766, 5079532, 10159064, 20318128]

約数ペア:

[(1, 20318128), (2, 10159064), (4, 5079532), (8, 2539766), (16, 1269883), (17, 1195184), (34, 597592), (68, 298796), (136, 149398), (272, 74699)]