20177556800

素因数分解:

$2^6\times 5^2\times {\mathrm{109}}^1\times {\mathrm{127}}^1\times {\mathrm{911}}^1$

素因数の和:1169

約数の個数: 168

約数和(自身を含む): 50554859520

約数和(自身を除く): 30377302720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 109, 127, 160, 200, 218, 254, 320, 400, 436, 508, 545, 635, 800, 872, 911, 1016, 1090, 1270, 1600, 1744, 1822, 2032, 2180, 2540, 2725, 3175, 3488, 3644, 4064, 4360, 4555, 5080, 5450, 6350, 6976, 7288, 8128, 8720, 9110, 10160, 10900, 12700, 13843, 14576, 17440, 18220, 20320, 21800, 22775, 25400, 27686, 29152, 34880, 36440, 40640, 43600, 45550, 50800, 55372, 58304, 69215, 72880, 87200, 91100, 99299, 101600, 110744, 115697, 138430, 145760, 174400, 182200, 198598, 203200, 221488, 231394, 276860, 291520, 346075, 364400, 397196, 442976, 462788, 496495, 553720, 578485, 692150, 728800, 794392, 885952, 925576, 992990, 1107440, 1156970, 1384300, 1457600, 1588784, 1851152, 1985980, 2214880, 2313940, 2482475, 2768600, 2892425, 3177568, 3702304, 3971960, 4429760, 4627880, 4964950, 5537200, 5784850, 6355136, 7404608, 7943920, 9255760, 9929900, 11074400, 11569700, 12610973, 15887840, 18511520, 19859800, 22148800, 23139400, 25221946, 31775680, 37023040, 39719600, 46278800, 50443892, 63054865, 79439200, 92557600, 100887784, 126109730, 158878400, 185115200, 201775568, 252219460, 315274325, 403551136, 504438920, 630548650, 807102272, 1008877840, 1261097300, 2017755680, 2522194600, 4035511360, 5044389200, 10088778400, 20177556800]

約数ペア:

[(1, 20177556800), (2, 10088778400), (4, 5044389200), (5, 4035511360), (8, 2522194600), (10, 2017755680), (16, 1261097300), (20, 1008877840), (25, 807102272), (32, 630548650), (40, 504438920), (50, 403551136), (64, 315274325), (80, 252219460), (100, 201775568), (109, 185115200), (127, 158878400), (160, 126109730), (200, 100887784), (218, 92557600), (254, 79439200), (320, 63054865), (400, 50443892), (436, 46278800), (508, 39719600), (545, 37023040), (635, 31775680), (800, 25221946), (872, 23139400), (911, 22148800), (1016, 19859800), (1090, 18511520), (1270, 15887840), (1600, 12610973), (1744, 11569700), (1822, 11074400), (2032, 9929900), (2180, 9255760), (2540, 7943920), (2725, 7404608), (3175, 6355136), (3488, 5784850), (3644, 5537200), (4064, 4964950), (4360, 4627880), (4555, 4429760), (5080, 3971960), (5450, 3702304), (6350, 3177568), (6976, 2892425), (7288, 2768600), (8128, 2482475), (8720, 2313940), (9110, 2214880), (10160, 1985980), (10900, 1851152), (12700, 1588784), (13843, 1457600), (14576, 1384300), (17440, 1156970), (18220, 1107440), (20320, 992990), (21800, 925576), (22775, 885952), (25400, 794392), (27686, 728800), (29152, 692150), (34880, 578485), (36440, 553720), (40640, 496495), (43600, 462788), (45550, 442976), (50800, 397196), (55372, 364400), (58304, 346075), (69215, 291520), (72880, 276860), (87200, 231394), (91100, 221488), (99299, 203200), (101600, 198598), (110744, 182200), (115697, 174400), (138430, 145760)]