15691392275

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{17}}^2\times {\mathrm{71}}^1\times {\mathrm{181}}^1$

素因数の和:322

約数の個数: 108

約数和(自身を含む): 22822070544

約数和(自身を除く): 7130678269

約数列:

[1, 5, 13, 17, 25, 65, 71, 85, 169, 181, 221, 289, 325, 355, 425, 845, 905, 923, 1105, 1207, 1445, 1775, 2353, 2873, 3077, 3757, 4225, 4525, 4615, 5525, 6035, 7225, 11765, 11999, 12851, 14365, 15385, 15691, 18785, 20519, 23075, 30175, 30589, 40001, 48841, 52309, 58825, 59995, 64255, 71825, 76925, 78455, 93925, 102595, 152945, 167063, 200005, 203983, 218467, 244205, 261545, 266747, 299975, 321275, 392275, 512975, 520013, 680017, 764725, 835315, 1000025, 1019915, 1092335, 1221025, 1307725, 1333735, 2171819, 2600065, 2840071, 3400085, 3467711, 3713939, 4176575, 5099575, 5461675, 6668675, 8840221, 10859095, 13000325, 14200355, 17000425, 17338555, 18569695, 36920923, 44201105, 48281207, 54295475, 71001775, 86692775, 92848475, 184604615, 221005525, 241406035, 627655691, 923023075, 1207030175, 3138278455, 15691392275]

約数ペア:

[(1, 15691392275), (5, 3138278455), (13, 1207030175), (17, 923023075), (25, 627655691), (65, 241406035), (71, 221005525), (85, 184604615), (169, 92848475), (181, 86692775), (221, 71001775), (289, 54295475), (325, 48281207), (355, 44201105), (425, 36920923), (845, 18569695), (905, 17338555), (923, 17000425), (1105, 14200355), (1207, 13000325), (1445, 10859095), (1775, 8840221), (2353, 6668675), (2873, 5461675), (3077, 5099575), (3757, 4176575), (4225, 3713939), (4525, 3467711), (4615, 3400085), (5525, 2840071), (6035, 2600065), (7225, 2171819), (11765, 1333735), (11999, 1307725), (12851, 1221025), (14365, 1092335), (15385, 1019915), (15691, 1000025), (18785, 835315), (20519, 764725), (23075, 680017), (30175, 520013), (30589, 512975), (40001, 392275), (48841, 321275), (52309, 299975), (58825, 266747), (59995, 261545), (64255, 244205), (71825, 218467), (76925, 203983), (78455, 200005), (93925, 167063), (102595, 152945)]