28087920

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{5573}}^1$

素因数の和:5599

約数の個数: 120

約数和(自身を含む): 107823456

約数和(自身を除く): 79735536

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 336, 360, 420, 504, 560, 630, 720, 840, 1008, 1260, 1680, 2520, 5040, 5573, 11146, 16719, 22292, 27865, 33438, 39011, 44584, 50157, 55730, 66876, 78022, 83595, 89168, 100314, 111460, 117033, 133752, 156044, 167190, 195055, 200628, 222920, 234066, 250785, 267504, 312088, 334380, 351099, 390110, 401256, 445840, 468132, 501570, 585165, 624176, 668760, 702198, 780220, 802512, 936264, 1003140, 1170330, 1337520, 1404396, 1560440, 1755495, 1872528, 2006280, 2340660, 2808792, 3120880, 3510990, 4012560, 4681320, 5617584, 7021980, 9362640, 14043960, 28087920]

約数ペア:

[(1, 28087920), (2, 14043960), (3, 9362640), (4, 7021980), (5, 5617584), (6, 4681320), (7, 4012560), (8, 3510990), (9, 3120880), (10, 2808792), (12, 2340660), (14, 2006280), (15, 1872528), (16, 1755495), (18, 1560440), (20, 1404396), (21, 1337520), (24, 1170330), (28, 1003140), (30, 936264), (35, 802512), (36, 780220), (40, 702198), (42, 668760), (45, 624176), (48, 585165), (56, 501570), (60, 468132), (63, 445840), (70, 401256), (72, 390110), (80, 351099), (84, 334380), (90, 312088), (105, 267504), (112, 250785), (120, 234066), (126, 222920), (140, 200628), (144, 195055), (168, 167190), (180, 156044), (210, 133752), (240, 117033), (252, 111460), (280, 100314), (315, 89168), (336, 83595), (360, 78022), (420, 66876), (504, 55730), (560, 50157), (630, 44584), (720, 39011), (840, 33438), (1008, 27865), (1260, 22292), (1680, 16719), (2520, 11146), (5040, 5573)]