18956490

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{4751}}^1$

素因数の和:4787

約数の個数: 64

約数和(自身を含む): 54743040

約数和(自身を除く): 35786550

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 19, 21, 30, 35, 38, 42, 57, 70, 95, 105, 114, 133, 190, 210, 266, 285, 399, 570, 665, 798, 1330, 1995, 3990, 4751, 9502, 14253, 23755, 28506, 33257, 47510, 66514, 71265, 90269, 99771, 142530, 166285, 180538, 199542, 270807, 332570, 451345, 498855, 541614, 631883, 902690, 997710, 1263766, 1354035, 1895649, 2708070, 3159415, 3791298, 6318830, 9478245, 18956490]

約数ペア:

[(1, 18956490), (2, 9478245), (3, 6318830), (5, 3791298), (6, 3159415), (7, 2708070), (10, 1895649), (14, 1354035), (15, 1263766), (19, 997710), (21, 902690), (30, 631883), (35, 541614), (38, 498855), (42, 451345), (57, 332570), (70, 270807), (95, 199542), (105, 180538), (114, 166285), (133, 142530), (190, 99771), (210, 90269), (266, 71265), (285, 66514), (399, 47510), (570, 33257), (665, 28506), (798, 23755), (1330, 14253), (1995, 9502), (3990, 4751)]