20307840

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{1511}}^1$

素因数の和:1540

約数の個数: 128

約数和(自身を含む): 74027520

約数和(自身を除く): 53719680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 224, 240, 280, 320, 336, 384, 420, 448, 480, 560, 640, 672, 840, 896, 960, 1120, 1344, 1511, 1680, 1920, 2240, 2688, 3022, 3360, 4480, 4533, 6044, 6720, 7555, 9066, 10577, 12088, 13440, 15110, 18132, 21154, 22665, 24176, 30220, 31731, 36264, 42308, 45330, 48352, 52885, 60440, 63462, 72528, 84616, 90660, 96704, 105770, 120880, 126924, 145056, 158655, 169232, 181320, 193408, 211540, 241760, 253848, 290112, 317310, 338464, 362640, 423080, 483520, 507696, 580224, 634620, 676928, 725280, 846160, 967040, 1015392, 1269240, 1353856, 1450560, 1692320, 2030784, 2538480, 2901120, 3384640, 4061568, 5076960, 6769280, 10153920, 20307840]

約数ペア:

[(1, 20307840), (2, 10153920), (3, 6769280), (4, 5076960), (5, 4061568), (6, 3384640), (7, 2901120), (8, 2538480), (10, 2030784), (12, 1692320), (14, 1450560), (15, 1353856), (16, 1269240), (20, 1015392), (21, 967040), (24, 846160), (28, 725280), (30, 676928), (32, 634620), (35, 580224), (40, 507696), (42, 483520), (48, 423080), (56, 362640), (60, 338464), (64, 317310), (70, 290112), (80, 253848), (84, 241760), (96, 211540), (105, 193408), (112, 181320), (120, 169232), (128, 158655), (140, 145056), (160, 126924), (168, 120880), (192, 105770), (210, 96704), (224, 90660), (240, 84616), (280, 72528), (320, 63462), (336, 60440), (384, 52885), (420, 48352), (448, 45330), (480, 42308), (560, 36264), (640, 31731), (672, 30220), (840, 24176), (896, 22665), (960, 21154), (1120, 18132), (1344, 15110), (1511, 13440), (1680, 12088), (1920, 10577), (2240, 9066), (2688, 7555), (3022, 6720), (3360, 6044), (4480, 4533)]