15696988175

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{257}}^1\times {\mathrm{331}}^1$

素因数の和:681

約数の個数: 72

約数和(自身を含む): 21895900656

約数和(自身を除く): 6198912481

約数列:

[1, 5, 11, 25, 55, 61, 121, 257, 275, 305, 331, 605, 671, 1285, 1525, 1655, 2827, 3025, 3355, 3641, 6425, 7381, 8275, 14135, 15677, 16775, 18205, 20191, 31097, 36905, 40051, 70675, 78385, 85067, 91025, 100955, 155485, 172447, 184525, 200255, 222101, 391925, 425335, 504775, 777425, 862235, 935737, 1001275, 1110505, 1896917, 2126675, 2443111, 4311175, 4678685, 5189087, 5552525, 9484585, 10293107, 12215555, 23393425, 25945435, 47422925, 51465535, 57079957, 61077775, 129727175, 257327675, 285399785, 627879527, 1426998925, 3139397635, 15696988175]

約数ペア:

[(1, 15696988175), (5, 3139397635), (11, 1426998925), (25, 627879527), (55, 285399785), (61, 257327675), (121, 129727175), (257, 61077775), (275, 57079957), (305, 51465535), (331, 47422925), (605, 25945435), (671, 23393425), (1285, 12215555), (1525, 10293107), (1655, 9484585), (2827, 5552525), (3025, 5189087), (3355, 4678685), (3641, 4311175), (6425, 2443111), (7381, 2126675), (8275, 1896917), (14135, 1110505), (15677, 1001275), (16775, 935737), (18205, 862235), (20191, 777425), (31097, 504775), (36905, 425335), (40051, 391925), (70675, 222101), (78385, 200255), (85067, 184525), (91025, 172447), (100955, 155485)]