19118049340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{353}}^1\times {\mathrm{3109}}^1$

素因数の和:3551

約数の個数: 96

約数和(自身を含む): 44019984960

約数和(自身を除く): 24901935620

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 67, 130, 134, 260, 268, 335, 353, 670, 706, 871, 1340, 1412, 1742, 1765, 3109, 3484, 3530, 4355, 4589, 6218, 7060, 8710, 9178, 12436, 15545, 17420, 18356, 22945, 23651, 31090, 40417, 45890, 47302, 62180, 80834, 91780, 94604, 118255, 161668, 202085, 208303, 236510, 307463, 404170, 416606, 473020, 614926, 808340, 833212, 1041515, 1097477, 1229852, 1537315, 2083030, 2194954, 2707939, 3074630, 4166060, 4389908, 5415878, 5487385, 6149260, 10831756, 10974770, 13539695, 14267201, 21949540, 27079390, 28534402, 54158780, 57068804, 71336005, 73530959, 142672010, 147061918, 285344020, 294123836, 367654795, 735309590, 955902467, 1470619180, 1911804934, 3823609868, 4779512335, 9559024670, 19118049340]

約数ペア:

[(1, 19118049340), (2, 9559024670), (4, 4779512335), (5, 3823609868), (10, 1911804934), (13, 1470619180), (20, 955902467), (26, 735309590), (52, 367654795), (65, 294123836), (67, 285344020), (130, 147061918), (134, 142672010), (260, 73530959), (268, 71336005), (335, 57068804), (353, 54158780), (670, 28534402), (706, 27079390), (871, 21949540), (1340, 14267201), (1412, 13539695), (1742, 10974770), (1765, 10831756), (3109, 6149260), (3484, 5487385), (3530, 5415878), (4355, 4389908), (4589, 4166060), (6218, 3074630), (7060, 2707939), (8710, 2194954), (9178, 2083030), (12436, 1537315), (15545, 1229852), (17420, 1097477), (18356, 1041515), (22945, 833212), (23651, 808340), (31090, 614926), (40417, 473020), (45890, 416606), (47302, 404170), (62180, 307463), (80834, 236510), (91780, 208303), (94604, 202085), (118255, 161668)]