16989990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{727}}^1$

素因数の和:797

約数の個数: 64

約数和(自身を含む): 44029440

約数和(自身を除く): 27039450

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 41, 57, 82, 95, 114, 123, 190, 205, 246, 285, 410, 570, 615, 727, 779, 1230, 1454, 1558, 2181, 2337, 3635, 3895, 4362, 4674, 7270, 7790, 10905, 11685, 13813, 21810, 23370, 27626, 29807, 41439, 59614, 69065, 82878, 89421, 138130, 149035, 178842, 207195, 298070, 414390, 447105, 566333, 894210, 1132666, 1698999, 2831665, 3397998, 5663330, 8494995, 16989990]

約数ペア:

[(1, 16989990), (2, 8494995), (3, 5663330), (5, 3397998), (6, 2831665), (10, 1698999), (15, 1132666), (19, 894210), (30, 566333), (38, 447105), (41, 414390), (57, 298070), (82, 207195), (95, 178842), (114, 149035), (123, 138130), (190, 89421), (205, 82878), (246, 69065), (285, 59614), (410, 41439), (570, 29807), (615, 27626), (727, 23370), (779, 21810), (1230, 13813), (1454, 11685), (1558, 10905), (2181, 7790), (2337, 7270), (3635, 4674), (3895, 4362)]