19199071775

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{79}}^1\times {\mathrm{97}}^1\times {\mathrm{593}}^1$

素因数の和:805

約数の個数: 72

約数和(自身を含む): 26418934080

約数和(自身を除く): 7219862305

約数列:

[1, 5, 13, 25, 65, 79, 97, 169, 325, 395, 485, 593, 845, 1027, 1261, 1975, 2425, 2965, 4225, 5135, 6305, 7663, 7709, 13351, 14825, 16393, 25675, 31525, 38315, 38545, 46847, 57521, 66755, 81965, 99619, 100217, 191575, 192725, 234235, 287605, 333775, 409825, 498095, 501085, 609011, 747773, 1171175, 1295047, 1438025, 2490475, 2505425, 3045055, 3738865, 4544159, 6475235, 7917143, 9721049, 15225275, 18694325, 22720795, 32376175, 39585715, 48605245, 59074067, 113603975, 197928575, 243026225, 295370335, 767962871, 1476851675, 3839814355, 19199071775]

約数ペア:

[(1, 19199071775), (5, 3839814355), (13, 1476851675), (25, 767962871), (65, 295370335), (79, 243026225), (97, 197928575), (169, 113603975), (325, 59074067), (395, 48605245), (485, 39585715), (593, 32376175), (845, 22720795), (1027, 18694325), (1261, 15225275), (1975, 9721049), (2425, 7917143), (2965, 6475235), (4225, 4544159), (5135, 3738865), (6305, 3045055), (7663, 2505425), (7709, 2490475), (13351, 1438025), (14825, 1295047), (16393, 1171175), (25675, 747773), (31525, 609011), (38315, 501085), (38545, 498095), (46847, 409825), (57521, 333775), (66755, 287605), (81965, 234235), (99619, 192725), (100217, 191575)]