30705920

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1$

素因数の和:200

約数の個数: 144

約数和(自身を含む): 88300800

約数和(自身を除く): 57594880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 32, 35, 40, 46, 56, 64, 70, 80, 92, 112, 115, 128, 140, 149, 160, 161, 184, 224, 230, 256, 280, 298, 320, 322, 368, 448, 460, 560, 596, 640, 644, 736, 745, 805, 896, 920, 1043, 1120, 1192, 1280, 1288, 1472, 1490, 1610, 1792, 1840, 2086, 2240, 2384, 2576, 2944, 2980, 3220, 3427, 3680, 4172, 4480, 4768, 5152, 5215, 5888, 5960, 6440, 6854, 7360, 8344, 8960, 9536, 10304, 10430, 11920, 12880, 13708, 14720, 16688, 17135, 19072, 20608, 20860, 23840, 23989, 25760, 27416, 29440, 33376, 34270, 38144, 41216, 41720, 47680, 47978, 51520, 54832, 66752, 68540, 83440, 95360, 95956, 103040, 109664, 119945, 133504, 137080, 166880, 190720, 191912, 206080, 219328, 239890, 267008, 274160, 333760, 383824, 438656, 479780, 548320, 667520, 767648, 877312, 959560, 1096640, 1335040, 1535296, 1919120, 2193280, 3070592, 3838240, 4386560, 6141184, 7676480, 15352960, 30705920]

約数ペア:

[(1, 30705920), (2, 15352960), (4, 7676480), (5, 6141184), (7, 4386560), (8, 3838240), (10, 3070592), (14, 2193280), (16, 1919120), (20, 1535296), (23, 1335040), (28, 1096640), (32, 959560), (35, 877312), (40, 767648), (46, 667520), (56, 548320), (64, 479780), (70, 438656), (80, 383824), (92, 333760), (112, 274160), (115, 267008), (128, 239890), (140, 219328), (149, 206080), (160, 191912), (161, 190720), (184, 166880), (224, 137080), (230, 133504), (256, 119945), (280, 109664), (298, 103040), (320, 95956), (322, 95360), (368, 83440), (448, 68540), (460, 66752), (560, 54832), (596, 51520), (640, 47978), (644, 47680), (736, 41720), (745, 41216), (805, 38144), (896, 34270), (920, 33376), (1043, 29440), (1120, 27416), (1192, 25760), (1280, 23989), (1288, 23840), (1472, 20860), (1490, 20608), (1610, 19072), (1792, 17135), (1840, 16688), (2086, 14720), (2240, 13708), (2384, 12880), (2576, 11920), (2944, 10430), (2980, 10304), (3220, 9536), (3427, 8960), (3680, 8344), (4172, 7360), (4480, 6854), (4768, 6440), (5152, 5960), (5215, 5888)]