15880618

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:143

約数の個数: 64

約数和(自身を含む): 29998080

約数和(自身を除く): 14117462

約数列:

[1, 2, 13, 17, 19, 26, 31, 34, 38, 61, 62, 122, 221, 247, 323, 403, 442, 494, 527, 589, 646, 793, 806, 1037, 1054, 1159, 1178, 1586, 1891, 2074, 2318, 3782, 4199, 6851, 7657, 8398, 10013, 13481, 13702, 15067, 15314, 19703, 20026, 24583, 26962, 30134, 32147, 35929, 39406, 49166, 64294, 71858, 130169, 256139, 260338, 417911, 467077, 512278, 610793, 835822, 934154, 1221586, 7940309, 15880618]

約数ペア:

[(1, 15880618), (2, 7940309), (13, 1221586), (17, 934154), (19, 835822), (26, 610793), (31, 512278), (34, 467077), (38, 417911), (61, 260338), (62, 256139), (122, 130169), (221, 71858), (247, 64294), (323, 49166), (403, 39406), (442, 35929), (494, 32147), (527, 30134), (589, 26962), (646, 24583), (793, 20026), (806, 19703), (1037, 15314), (1054, 15067), (1159, 13702), (1178, 13481), (1586, 10013), (1891, 8398), (2074, 7657), (2318, 6851), (3782, 4199)]