439997866

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{23}}^2\times {\mathrm{491}}^1$

素因数の和:568

約数の個数: 72

約数和(自身を含む): 868466592

約数和(自身を除く): 428468726

約数列:

[1, 2, 7, 11, 14, 22, 23, 46, 77, 121, 154, 161, 242, 253, 322, 491, 506, 529, 847, 982, 1058, 1694, 1771, 2783, 3437, 3542, 3703, 5401, 5566, 5819, 6874, 7406, 10802, 11293, 11638, 19481, 22586, 37807, 38962, 40733, 59411, 64009, 75614, 79051, 81466, 118822, 124223, 128018, 158102, 248446, 259739, 415877, 448063, 519478, 831754, 869561, 896126, 1366453, 1739122, 1818173, 2732906, 2857129, 3636346, 5714258, 9565171, 19130342, 19999903, 31428419, 39999806, 62856838, 219998933, 439997866]

約数ペア:

[(1, 439997866), (2, 219998933), (7, 62856838), (11, 39999806), (14, 31428419), (22, 19999903), (23, 19130342), (46, 9565171), (77, 5714258), (121, 3636346), (154, 2857129), (161, 2732906), (242, 1818173), (253, 1739122), (322, 1366453), (491, 896126), (506, 869561), (529, 831754), (847, 519478), (982, 448063), (1058, 415877), (1694, 259739), (1771, 248446), (2783, 158102), (3437, 128018), (3542, 124223), (3703, 118822), (5401, 81466), (5566, 79051), (5819, 75614), (6874, 64009), (7406, 59411), (10802, 40733), (11293, 38962), (11638, 37807), (19481, 22586)]