1780189958

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{90191}}^1$

素因数の和:90403

約数の個数: 16

約数和(自身を含む): 2727406080

約数和(自身を除く): 947216122

約数列:

[1, 2, 71, 139, 142, 278, 9869, 19738, 90191, 180382, 6403561, 12536549, 12807122, 25073098, 890094979, 1780189958]

約数ペア:

[(1, 1780189958), (2, 890094979), (71, 25073098), (139, 12807122), (142, 12536549), (278, 6403561), (9869, 180382), (19738, 90191)]