209580640

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{971}}^1$

素因数の和:1076

約数の個数: 96

約数和(自身を含む): 529079040

約数和(自身を除く): 319498400

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 71, 76, 80, 95, 142, 152, 160, 190, 284, 304, 355, 380, 568, 608, 710, 760, 971, 1136, 1349, 1420, 1520, 1942, 2272, 2698, 2840, 3040, 3884, 4855, 5396, 5680, 6745, 7768, 9710, 10792, 11360, 13490, 15536, 18449, 19420, 21584, 26980, 31072, 36898, 38840, 43168, 53960, 68941, 73796, 77680, 92245, 107920, 137882, 147592, 155360, 184490, 215840, 275764, 295184, 344705, 368980, 551528, 590368, 689410, 737960, 1103056, 1309879, 1378820, 1475920, 2206112, 2619758, 2757640, 2951840, 5239516, 5515280, 6549395, 10479032, 11030560, 13098790, 20958064, 26197580, 41916128, 52395160, 104790320, 209580640]

約数ペア:

[(1, 209580640), (2, 104790320), (4, 52395160), (5, 41916128), (8, 26197580), (10, 20958064), (16, 13098790), (19, 11030560), (20, 10479032), (32, 6549395), (38, 5515280), (40, 5239516), (71, 2951840), (76, 2757640), (80, 2619758), (95, 2206112), (142, 1475920), (152, 1378820), (160, 1309879), (190, 1103056), (284, 737960), (304, 689410), (355, 590368), (380, 551528), (568, 368980), (608, 344705), (710, 295184), (760, 275764), (971, 215840), (1136, 184490), (1349, 155360), (1420, 147592), (1520, 137882), (1942, 107920), (2272, 92245), (2698, 77680), (2840, 73796), (3040, 68941), (3884, 53960), (4855, 43168), (5396, 38840), (5680, 36898), (6745, 31072), (7768, 26980), (9710, 21584), (10792, 19420), (11360, 18449), (13490, 15536)]