28511280

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{5657}}^1$

素因数の和:5683

約数の個数: 120

約数和(自身を含む): 109448352

約数和(自身を除く): 80937072

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, 5657, 11314, 16971, 22628, 28285, 33942, 39599, 45256, 50913, 56570, 67884, 79198, 84855, 90512, 101826, 113140, 118797, 135768, 158396, 169710, 197995, 203652, 226280, 237594, 254565, 271536, 316792, 339420, 356391, 395990, 407304, 452560, 475188, 509130, 593985, 633584, 678840, 712782, 791980, 814608, 950376, 1018260, 1187970, 1357680, 1425564, 1583960, 1781955, 1900752, 2036520, 2375940, 2851128, 3167920, 3563910, 4073040, 4751880, 5702256, 7127820, 9503760, 14255640, 28511280]

約数ペア:

[(1, 28511280), (2, 14255640), (3, 9503760), (4, 7127820), (5, 5702256), (6, 4751880), (7, 4073040), (8, 3563910), (9, 3167920), (10, 2851128), (12, 2375940), (14, 2036520), (15, 1900752), (16, 1781955), (18, 1583960), (20, 1425564), (21, 1357680), (24, 1187970), (28, 1018260), (30, 950376), (35, 814608), (36, 791980), (40, 712782), (42, 678840), (45, 633584), (48, 593985), (56, 509130), (60, 475188), (63, 452560), (70, 407304), (72, 395990), (80, 356391), (84, 339420), (90, 316792), (105, 271536), (112, 254565), (120, 237594), (126, 226280), (140, 203652), (144, 197995), (168, 169710), (180, 158396), (210, 135768), (240, 118797), (252, 113140), (280, 101826), (315, 90512), (336, 84855), (360, 79198), (420, 67884), (504, 56570), (560, 50913), (630, 45256), (720, 39599), (840, 33942), (1008, 28285), (1260, 22628), (1680, 16971), (2520, 11314), (5040, 5657)]