1640643172

素因数分解:

$2^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{149}}^1\times {\mathrm{5387}}^1$

素因数の和:5620

約数の個数: 48

約数和(自身を含む): 3349180800

約数和(自身を除く): 1708537628

約数列:

[1, 2, 4, 7, 14, 28, 73, 146, 149, 292, 298, 511, 596, 1022, 1043, 2044, 2086, 4172, 5387, 10774, 10877, 21548, 21754, 37709, 43508, 75418, 76139, 150836, 152278, 304556, 393251, 786502, 802663, 1573004, 1605326, 2752757, 3210652, 5505514, 5618641, 11011028, 11237282, 22474564, 58594399, 117188798, 234377596, 410160793, 820321586, 1640643172]

約数ペア:

[(1, 1640643172), (2, 820321586), (4, 410160793), (7, 234377596), (14, 117188798), (28, 58594399), (73, 22474564), (146, 11237282), (149, 11011028), (292, 5618641), (298, 5505514), (511, 3210652), (596, 2752757), (1022, 1605326), (1043, 1573004), (2044, 802663), (2086, 786502), (4172, 393251), (5387, 304556), (10774, 152278), (10877, 150836), (21548, 76139), (21754, 75418), (37709, 43508)]